/* ==========================================================================
   Economist Reports - Refined Dark Theme
   A sleek, editorial reading experience
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens
   -------------------------------------------------------------------------- */
:root {
    /* Color Palette - Refined warm dark */
    --color-bg-primary: #0c0e12;
    --color-bg-secondary: #12151a;
    --color-bg-tertiary: #1a1e26;
    --color-bg-hover: #252a35;
    --color-bg-elevated: #1e222b;

    --color-border: #2a303c;
    --color-border-subtle: #1e232d;
    --color-border-accent: rgba(99, 179, 237, 0.2);

    /* Text Colors - Warmer, easier on eyes */
    --color-text-primary: #e8e6e3;
    --color-text-secondary: #a8a29e;
    --color-text-muted: #6b6660;
    --color-text-heading: #f5f3f0;

    /* Accent Colors - Refined blue with warm undertones */
    --color-accent: #63b3ed;
    --color-accent-muted: rgba(99, 179, 237, 0.15);
    --color-accent-emphasis: #3182ce;
    --color-accent-glow: rgba(99, 179, 237, 0.4);
    --color-success: #68d391;
    --color-warning: #ecc94b;

    /* Typography - Editorial quality */
    --font-serif: 'Source Serif 4', 'Iowan Old Style', 'Palatino Linotype', 'URW Palladio L', P052, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, monospace;
    --font-display: 'Outfit', var(--font-sans);

    /* Spacing - Generous for readability */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 32px;
    --space-6: 48px;
    --space-7: 64px;

    /* Layout */
    --max-width: 1200px;
    --content-width: 720px;
    --header-height: 52px;
    --toc-width: 260px;

    /* Timeline track offset: positions track line below day number
       timeline-pad(16) + node-pad(16) + marker(48) + gap(8) + day(2.5rem) + clearance(4) */
    --timeline-track-offset: calc(var(--space-3) + var(--space-3) + 48px + var(--space-2) + 2.5rem + 4px);
    /* Absolute position for nav arrows: wrapper-pad + track-offset */
    --timeline-nav-top: calc(var(--space-4) + var(--timeline-track-offset));

    /* Effects - Refined shadows and transitions */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.25), 0 1px 3px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px var(--color-accent-glow);
    --radius: 6px;
    --radius-lg: 12px;
    --transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Grain overlay for texture */
    --grain-opacity: 0.03;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + var(--space-4));
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    text-rendering: optimizeLegibility;
    /* Fix Safari iOS bounce scroll showing content above header */
    background: var(--color-bg-primary);
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    min-height: 100vh;
    position: relative;
    /* Flexbox layout to push footer to bottom on large screens */
    display: flex;
    flex-direction: column;
}

/* Subtle grain texture overlay for depth */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: var(--grain-opacity);
    z-index: 1000;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition), opacity var(--transition);
}

a:hover {
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* Text Selection - warm accent highlight */
::selection {
    background: rgba(99, 179, 237, 0.3);
    color: #fff;
}

::-moz-selection {
    background: rgba(99, 179, 237, 0.3);
    color: #fff;
}

/* --------------------------------------------------------------------------
   Site Header
   -------------------------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    height: var(--header-height);
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-primary) 60%, transparent 100%);
    z-index: 100;
    display: flex;
    align-items: center;
    padding: 0 var(--space-4);
    flex-shrink: 0;
    overflow: visible;
}

/* Frosted glass header on scrollable pages for readability */
.page-report .site-header,
.page-about .site-header {
    background: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12),
                0 4px 16px rgba(0, 0, 0, 0.08);
}

.site-header .logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-primary);
    transition: color 0.2s ease;
}

.site-header .logo:hover {
    text-decoration: none;
    color: var(--color-accent);
}

.site-header .logo-mark {
    position: relative;
    flex-shrink: 0;
    overflow: visible;
}

.logo-crown {
    width: auto;
    height: 39px;
    color: var(--color-text-primary);
    overflow: visible;
    margin: -2px 0;
}

.logo-crown-dot {
    fill: var(--color-accent);
    animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% {
        opacity: 0.4;
        r: 15.2;
    }
    50% {
        opacity: 1;
        r: 17;
    }
}

.site-header .logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: lowercase;
}

/* Beta Badge - Superscript Label (Ultra-Minimal) */
.beta-badge-super {
    font-family: var(--font-sans);
    font-size: 0.5rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    opacity: 0.7;
    vertical-align: super;
    margin-left: 4px;
    position: relative;
    top: -2px;
    transition: opacity var(--transition);
}


.logo:hover .beta-badge-super {
    opacity: 1;
}

.site-header nav {
    margin-left: auto;
    display: flex;
    gap: var(--space-3);
}

.site-header nav a {
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius);
    transition: all var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.site-header nav a:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    text-decoration: none;
}

/* --------------------------------------------------------------------------
   Reading Progress Bar
   -------------------------------------------------------------------------- */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    z-index: 1001;
    background: transparent;
    pointer-events: none;
}

.reading-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg,
        var(--color-accent-emphasis) 0%,
        var(--color-accent) 50%,
        #a78bfa 100%
    );
    transition: width 80ms ease-out;
    box-shadow:
        0 0 12px var(--color-accent-glow),
        0 0 4px var(--color-accent);
    border-radius: 0 1px 1px 0;
}

/* --------------------------------------------------------------------------
   Index Page - Horizontal Timeline
   -------------------------------------------------------------------------- */
.index-container {
    min-height: calc(100vh - var(--header-height));
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-3) 0;
    padding-bottom: var(--space-6);
    overflow: visible;
}

.index-header {
    text-align: center;
    margin-bottom: var(--space-3);
    padding: 0 var(--space-4);
}

.index-title {
    font-size: 2.75rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);

    /* Entrance animation */
    opacity: 0;
    transform: translateY(15px);
    animation: headerReveal 0.7s cubic-bezier(0.4, 0, 0.2, 1) 0.1s forwards;
}

.index-subtitle {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.2em;

    /* Entrance animation - slightly delayed */
    opacity: 0;
    transform: translateY(10px);
    animation: headerReveal 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.25s forwards;
}

@keyframes headerReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Timeline Wrapper */
.timeline-wrapper {
    position: relative;
    width: 100%;
    padding: var(--space-4) 0;
    padding-bottom: 80px;   /* Reserve space for event display (was in .timeline) */
    overflow: visible;
}

/* The horizontal track line - draws from center outward.
   Absolutely positioned so it doesn't affect flex centering,
   with transform to visually align with the dot center. */
.timeline-track {
    position: absolute;
    top: var(--space-4);
    left: 0;
    right: 0;
    height: 1px;
    background: var(--color-border);
    transform: translateY(var(--timeline-track-offset)) scaleX(0);
    transform-origin: center;
    animation: trackDraw 1s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
    z-index: 0;
    pointer-events: none;
}

.timeline-track::before,
.timeline-track::after {
    content: '';
    position: absolute;
    top: 0;
    width: 10%;
    height: 100%;
}

.timeline-track::before {
    left: 0;
    background: linear-gradient(90deg, transparent, var(--color-border));
}

.timeline-track::after {
    right: 0;
    background: linear-gradient(90deg, var(--color-border), transparent);
}

@keyframes trackDraw {
    to {
        transform: translateY(var(--timeline-track-offset)) scaleX(1);
    }
}

/* Scrollable timeline */
.timeline {
    display: flex;
    gap: var(--space-5);
    padding: var(--space-3) var(--space-5);
    padding-bottom: 20px;
    overflow-x: auto;
    overflow-y: clip;
    /* scroll-snap only on touch devices — desktop mouse wheel fights snap in Safari */
    overscroll-behavior: contain; /* Prevent scroll chaining to parent */
    touch-action: pan-x pinch-zoom; /* Restrict touch to horizontal + zoom only */
    /* GPU acceleration for smooth scrolling */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

/* Hide scrollbar but keep functionality */
.timeline::-webkit-scrollbar {
    height: 0;
    display: none;
}

.timeline {
    scrollbar-width: none;
}

/* Timeline Node */
.timeline-node {
    position: relative;
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    text-decoration: none;
    /* scroll-snap-align only on touch devices — see @media (pointer: coarse) below */
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Staggered entrance animation - opacity only so hover transform works */
    opacity: 0;
    animation: nodeReveal 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    animation-delay: calc(0.8s + (var(--node-index, 0) * 0.1s));

    /* GPU acceleration for smooth iOS animations */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-tap-highlight-color: transparent;
}

/* Touch devices: enable scroll-snap for swipe UX (phones, tablets) */
@media (pointer: coarse) {
    .timeline {
        scroll-snap-type: x proximity;
    }
    .timeline-node {
        scroll-snap-align: center;
    }
}

@keyframes nodeReveal {
    to {
        opacity: 1;
    }
}

.timeline-node:hover {
    transform: translateY(-4px);
    text-decoration: none;
}

.timeline-node:first-child {
    margin-left: auto;
}

.timeline-node:last-child {
    margin-right: auto;
}

/* Node Marker (the dot on the line) */
.node-marker {
    position: relative;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.node-dot {
    position: relative;
    width: 12px;
    height: 12px;
    background: transparent;
    border: 2px solid rgba(88, 166, 255, 0.6);
    border-radius: 50%;
    transition: all 0.3s ease;
    /* iOS: Ensure hardware acceleration */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

/* Free reports (top 3) - green border */
.timeline-node.is-free .node-dot {
    background: transparent;
    border-color: rgba(63, 185, 80, 0.8);
}

/* Gentle hover ripple effect */
.node-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--color-accent);
    transform: translate(-50%, -50%) scale(1);
    opacity: 0;
    transition: none;
}

.timeline-node:hover .node-dot::before {
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    100% {
        transform: translate(-50%, -50%) scale(3.5);
        opacity: 0;
    }
}

.timeline-node:hover .node-dot {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 16px rgba(88, 166, 255, 0.6);
    transform: scale(1.3);
}

/* Free reports hover - fill with green and glow */
.timeline-node.is-free:hover .node-dot {
    background: #3fb950;
    border-color: #3fb950;
    box-shadow: 0 0 16px rgba(63, 185, 80, 0.6);
}

/* Node Content (date display) */
.node-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.node-day {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1;
    letter-spacing: -0.02em;
    transition: color 0.3s ease, letter-spacing 0.3s ease, font-weight 0.3s ease;
}

.timeline-node:hover .node-day {
    color: var(--color-accent);
    letter-spacing: 0.02em;
}

.node-month {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
    transition: letter-spacing 0.3s ease, color 0.3s ease;
}

.timeline-node:hover .node-month {
    letter-spacing: 0.15em;
    color: var(--color-text-primary);
}

.node-year {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: 2px;
    transition: color 0.3s ease;
}

.timeline-node:hover .node-year {
    color: var(--color-text-secondary);
}

/* Node Meta */
.node-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.timeline-node:hover .node-meta {
    opacity: 1;
}

.node-badge {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(88, 166, 255, 0.15);
    color: var(--color-accent);
    white-space: nowrap;
}

.node-badge.personal-finance {
    background: rgba(210, 153, 34, 0.15);
    color: var(--color-warning);
}

.node-time {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Event Indicators & Card
   -------------------------------------------------------------------------- */

/* Event indicator colors */
:root {
    --event-data: #58a6ff;
    --event-policy: #d4a855;
    --event-geo: #f47067;
    --event-market: #3fb950;
}

/* Event dots container below timeline node */
.node-events {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-top: 8px;
    min-height: 8px;
}

/* Individual event indicator dot */
.event-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    /* iOS: Prevent tap delay */
    touch-action: manipulation;
}

.event-dot.data { background: var(--event-data); }
.event-dot.policy { background: var(--event-policy); }
.event-dot.geo { background: var(--event-geo); }
.event-dot.market { background: var(--event-market); }

.event-dot:hover {
    transform: scale(1.5);
    box-shadow: 0 0 8px currentColor;
}

.event-dot.data:hover { box-shadow: 0 0 8px var(--event-data); }
.event-dot.policy:hover { box-shadow: 0 0 8px var(--event-policy); }
.event-dot.geo:hover { box-shadow: 0 0 8px var(--event-geo); }
.event-dot.market:hover { box-shadow: 0 0 8px var(--event-market); }

/* Events legend */
.events-legend {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-3);
    opacity: 0;
    animation: fadeIn 0.5s ease 1.5s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.legend-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.legend-dot.data { background: var(--event-data); }
.legend-dot.policy { background: var(--event-policy); }
.legend-dot.geo { background: var(--event-geo); }
.legend-dot.market { background: var(--event-market); }

/* Event display area - positioned below timeline, aligned under hovered node */
.event-display {
    position: absolute;
    left: 0;
    transform: translateX(-50%);
    padding: 4px 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
    z-index: 10;
    white-space: nowrap;
}

.event-display.is-active {
    opacity: 1;
}

.event-display-item {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.event-display-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    flex-shrink: 0;
}

.event-display-dot.data { background: var(--event-data); box-shadow: 0 0 8px var(--event-data); }
.event-display-dot.policy { background: var(--event-policy); box-shadow: 0 0 8px var(--event-policy); }
.event-display-dot.geo { background: var(--event-geo); box-shadow: 0 0 8px var(--event-geo); }
.event-display-dot.market { background: var(--event-market); box-shadow: 0 0 8px var(--event-market); }

.event-display-text {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.02em;
}

/* Event hover labels use inline styles only - no CSS classes needed */

/* Version transition labels - positioned at the track line level */
.timeline-node.is-version-start::before {
    content: attr(data-version-label);
    position: absolute;
    top: calc(var(--timeline-track-offset) - var(--space-3));
    right: -4px;
    transform: translate(100%, -50%);
    padding: 2px 8px;
    font-size: 8px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    opacity: 0.8;
    pointer-events: none;
    white-space: nowrap;
}

/* Version color coding */
.timeline-node.is-version-start[data-version-label="v2"]::before {
    color: #d4a855;
}

.timeline-node.is-version-start[data-version-label="v3"]::before {
    color: #3fb950;
}

/* Scroll Hint */
.scroll-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-2);
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: hint-pulse 2s ease-in-out infinite;
}

.scroll-hint svg {
    width: 16px;
    height: 16px;
    animation: hint-arrow 1.5s ease-in-out infinite;
}

@keyframes hint-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes hint-arrow {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4px); }
}

/* Timeline Navigation Arrows - for keyboard/mouse users (desktop only) */
.timeline-nav {
    position: absolute;
    top: var(--timeline-nav-top);
    transform: translateY(-50%);
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    opacity: 0;
    pointer-events: none;
}

.timeline-nav.visible {
    opacity: 1;
    pointer-events: auto;
}

.timeline-nav:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.timeline-nav:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-muted);
}

.timeline-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.timeline-nav svg {
    width: 18px;
    height: 18px;
}

.timeline-nav-left {
    left: var(--space-2);
}

.timeline-nav-right {
    right: var(--space-2);
}

/* Hide nav arrows on touch devices and small screens */
@media (hover: none), (pointer: coarse) {
    .timeline-nav {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .timeline-nav {
        display: none !important;
    }
}

/* Mobile scroll indicators - visual hints for scrollability */
.timeline-scroll-indicator {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 100%;
    pointer-events: none;
    z-index: 8;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: none;  /* Hidden by default */
}

.timeline-scroll-indicator-left {
    left: 0;
    background: linear-gradient(to right, var(--color-bg-primary) 0%, transparent 100%);
}

.timeline-scroll-indicator-right {
    right: 0;
    background: linear-gradient(to left, var(--color-bg-primary) 0%, transparent 100%);
}

/* Show indicators on mobile/touch devices when scrollable */
@media (max-width: 768px), (pointer: coarse) {
    .timeline-scroll-indicator {
        display: block;
    }

    .timeline-scroll-indicator.visible {
        opacity: 0.8;
    }
}

/* Make timeline focusable for keyboard nav */
.timeline:focus {
    outline: none;
}

.timeline:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

/* Touch hint - mobile only, shown contextually */
.touch-hint {
    /* Position fixed takes out of flow - won't affect flex layout */
    position: fixed;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    font-size: 0.6875rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
    z-index: 100;
}

.touch-hint.visible {
    opacity: 1;
    visibility: visible;
}

/* --------------------------------------------------------------------------
   Report Page Layout
   -------------------------------------------------------------------------- */
.report-page {
    display: flex;
}

/* Vertical Timeline Sidebar */
.timeline-sidebar {
    position: sticky;
    top: var(--header-height);
    width: 72px;
    height: calc(100vh - var(--header-height));
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border-subtle);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.timeline-sidebar-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-bottom: 1px solid var(--color-border-subtle);
}

.timeline-home {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.timeline-home:hover {
    color: var(--color-accent);
    background: var(--color-accent-muted);
}

.timeline-home svg {
    width: 18px;
    height: 18px;
}

.timeline-label {
    font-family: var(--font-sans);
    font-size: 0.5625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    opacity: 0.6;
}

/* Vertical Timeline */
.vertical-timeline {
    flex: 1;
    position: relative;
    overflow-y: auto;
    padding: var(--space-3) 0;
}

.vertical-timeline::-webkit-scrollbar {
    width: 0;
    display: none;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: var(--space-3);
    bottom: var(--space-3);
    width: 1px;
    background: linear-gradient(180deg,
        var(--color-border) 0%,
        var(--color-border) 90%,
        transparent 100%
    );
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-2) var(--space-2);
    text-decoration: none;
    transition: all 0.2s ease;
}

.timeline-item:hover {
    text-decoration: none;
}

.timeline-item:hover .timeline-dot {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 12px rgba(88, 166, 255, 0.5);
    transform: scale(1.3);
}

.timeline-item:hover .timeline-day {
    color: var(--color-accent);
}

.timeline-item.active .timeline-dot {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 12px rgba(88, 166, 255, 0.4);
}

.timeline-item.active .timeline-day {
    color: var(--color-accent);
}

.timeline-dot {
    width: 8px;
    height: 8px;
    background: var(--color-bg-tertiary);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    margin-bottom: var(--space-1);
    transition: all 0.2s ease;
    z-index: 1;
}

.timeline-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.timeline-day {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.2;
    transition: color 0.2s ease;
}

.timeline-month {
    font-size: 0.5625rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.timeline-year {
    font-size: 0.5rem;
    font-weight: 400;
    color: var(--color-text-muted);
    opacity: 0.7;
    margin-top: 1px;
}

.timeline-item:hover .timeline-year,
.timeline-item.active .timeline-year {
    opacity: 1;
}

/* Report Container */
.report-container {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-5) var(--space-4);
    min-width: 0;
}

.report-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

/* Subtle gradient accent on header */
.report-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

.breadcrumb {
    font-size: 0.8125rem;
    margin-bottom: var(--space-4);
    color: var(--color-text-muted);
    font-family: var(--font-sans);
    letter-spacing: 0.02em;
}

.breadcrumb a {
    color: var(--color-text-muted);
    transition: color var(--transition);
}

.breadcrumb a:hover {
    color: var(--color-accent);
    text-decoration: none;
}

.breadcrumb .separator {
    margin: 0 var(--space-2);
    color: var(--color-text-muted);
    opacity: 0.5;
}

.breadcrumb .current {
    color: var(--color-text-secondary);
}

.report-title {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 500;
    margin-bottom: var(--space-4);
    line-height: 1.2;
    letter-spacing: -0.025em;
    color: var(--color-text-heading);
}

.report-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-family: var(--font-sans);
}

.report-meta time {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.reading-time {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.reading-time::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--color-text-muted);
    border-radius: 50%;
    opacity: 0.5;
}

.badge {
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    padding-right: var(--space-3);
    border-right: 1px solid var(--color-border);
    /* Flat text with divider line instead of box */
}

.badge-personal-finance {
    background: rgba(236, 201, 75, 0.1);
    color: var(--color-warning);
    border-color: rgba(236, 201, 75, 0.2);
}

/* --------------------------------------------------------------------------
   Region Pills - Inline region switcher in report metadata
   -------------------------------------------------------------------------- */

.region-pills {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    margin-left: var(--space-2);
}

.region-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 11px;
    border-radius: 999px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: 1.5px solid transparent;
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
    text-decoration: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.region-pill:hover {
    background: var(--color-bg-hover, rgba(255, 255, 255, 0.08));
    color: var(--color-text-secondary);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.16);
    text-decoration: none;
}

.region-pill.active {
    background: rgba(88, 166, 255, 0.1);
    color: var(--color-accent);
    border-color: rgba(88, 166, 255, 0.4);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.12),
                0 2px 6px rgba(88, 166, 255, 0.2);
}

.region-pill:active {
    transform: scale(0.96);
}

.region-flag {
    font-size: 0.95rem;
    line-height: 1;
}

.region-code {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* Region pill depth expansion (desktop only) */
.region-pill-depths {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-left: 0;
    padding-left: 0;
    border-left: 1px solid transparent;
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.2s ease 0.05s,
                margin-left 0.3s ease,
                padding-left 0.3s ease,
                border-color 0.3s ease;
}

.region-pill.expanded .region-pill-depths,
.region-pill.active .region-pill-depths {
    max-width: 120px;
    opacity: 1;
    margin-left: 5px;
    padding-left: 8px;
    border-left-color: rgba(88, 166, 255, 0.2);
    pointer-events: auto;
}

.region-pill.expanded {
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.12),
                0 2px 8px rgba(88, 166, 255, 0.15);
}

.region-depth-item {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 400;
    padding: 2px 6px;
    border-radius: 3px;
    color: rgba(88, 166, 255, 0.4);
    cursor: pointer;
    transition: color 0.15s ease, background 0.15s ease;
    white-space: nowrap;
}

.region-depth-item:hover {
    color: var(--color-accent);
    background: rgba(88, 166, 255, 0.1);
}

.region-depth-item.current {
    color: var(--color-accent);
    background: rgba(88, 166, 255, 0.14);
    font-weight: 500;
}

.region-depth-item.na {
    color: rgba(255, 255, 255, 0.06);
    cursor: default;
    pointer-events: none;
}

/* Hide depth expansion on mobile — keep existing mobile pattern */
@media (max-width: 768px) {
    .region-pill-depths {
        display: none !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    .region-pill {
        transition: none;
    }
    .region-pill:hover {
        transform: none;
    }
}

/* --------------------------------------------------------------------------
   Timeline Region Flags - Multi-region indicators on timeline nodes
   -------------------------------------------------------------------------- */

.node-regions {
    display: flex;
    gap: 4px;
    margin-top: 6px;
    justify-content: center;
}

.node-region-flag {
    font-size: 0.85rem;
    opacity: 0.8;
    transition: opacity var(--transition);
}

.timeline-node:hover .node-region-flag {
    opacity: 1;
}




/* --------------------------------------------------------------------------
   Report Depth Selector - S/M/L complexity toggle
   Desktop: Segmented Control in header
   Mobile: Floating Pill in bottom-right
   -------------------------------------------------------------------------- */

/* Desktop Segmented Control - Inline with metadata */
.depth-selector-desktop {
    display: inline-flex;
    margin-left: var(--space-3);
}

.depth-segmented {
    display: inline-flex;
    gap: 6px;
    /* No background, no border, no padding - minimal pills only */
}

.depth-segment {
    position: relative; /* Enable absolute positioning for tooltip */
    padding: 4px 10px;
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition);
    border-radius: 4px;
    border: 1px solid transparent;
    background: transparent;
    min-width: 40px;
    text-align: center;
}

.depth-segment:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.depth-segment.active {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* Ghost background affordance - desktop only (devices with hover capability) */
@media (hover: hover) {
    .depth-segment {
        background: rgba(255, 255, 255, 0.02);
        border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .depth-segment:hover {
        background: rgba(255, 255, 255, 0.06);
    }

    .depth-segment.active {
        background: rgba(88, 166, 255, 0.08);
    }
}

/* Tooltip on hover */
.depth-segment-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.6875rem;
    font-weight: 400;
    text-transform: none;
    letter-spacing: normal;
    color: var(--color-text-secondary);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    pointer-events: none;
    z-index: 10;
}

.depth-segment-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-border);
}

.depth-segment:hover .depth-segment-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Disabled state for unavailable depths */
.depth-segment.disabled,
.depth-pill-option.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.depth-segment.disabled .depth-segment-tooltip {
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

/* Mobile Floating Pill */
/* Responsive: Hide desktop depth selector on mobile */
@media (max-width: 768px) {
    .depth-selector-desktop {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Report Layout with TOC Sidebar
   -------------------------------------------------------------------------- */
.report-layout {
    display: grid;
    grid-template-columns: var(--toc-width) 1fr;
    gap: var(--space-5);
    align-items: start;
}

@media (max-width: 1024px) {
    .report-layout {
        grid-template-columns: 1fr;
    }

    .toc-sidebar {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   TOC Sidebar - Refined Navigation
   -------------------------------------------------------------------------- */
.toc-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-5));
}

.toc-container {
    padding: var(--space-3) 0;
    max-height: calc(100vh - var(--header-height) - var(--space-7));
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-subtle) transparent;
}

.toc-container::-webkit-scrollbar {
    width: 4px;
}

.toc-container::-webkit-scrollbar-track {
    background: transparent;
}

.toc-container::-webkit-scrollbar-thumb {
    background: var(--color-border-subtle);
    border-radius: 2px;
}

.toc-container::-webkit-scrollbar-thumb:hover {
    background: var(--color-border);
}

.toc-title {
    font-family: var(--font-sans);
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
    padding-left: var(--space-3);
    opacity: 0.6;
}

/* Hide the auto-generated "Contents" heading from markdown TOC */
.toc-container .toc > li:first-child > a[href="#contents"] {
    display: none;
}

.toc-container .toc > li:first-child > ul {
    padding-left: 0;
}

.toc-container .toc {
    list-style: none;
}

.toc-container .toc ul {
    list-style: none;
    padding-left: var(--space-3);
    margin-top: var(--space-1);
}

.toc-container .toc li {
    margin-bottom: 2px;
}

.toc-container .toc a {
    display: block;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: var(--space-2) var(--space-3);
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius) var(--radius) 0;
    transition: all var(--transition);
    line-height: 1.4;
}

.toc-container .toc a:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    text-decoration: none;
}

.toc-container .toc a.active {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
    background: var(--color-accent-muted);
    font-weight: 500;
}

/* Nested TOC items - subtler */
.toc-container .toc ul ul a {
    font-size: 0.8125rem;
    font-weight: 400;
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-muted);
    opacity: 0.7;
    border-left-width: 1px;
}

.toc-container .toc ul ul a:hover {
    opacity: 1;
}

.toc-container .toc ul ul a.active {
    opacity: 1;
}

/* Fallback: Strong visual differentiation for flat H2-only TOCs (when no H3s exist) */
/* Create pseudo-hierarchy by progressively reducing visual weight every 3-5 items */
.toc-container .toc > ul > li:nth-child(n+1):nth-child(-n+5) > a {
    /* First 5 items: Full weight (primary section markers) */
    opacity: 1;
    font-size: 0.9375rem;  /* 15px - same as normal H2 */
    font-weight: 500;
}

.toc-container .toc > ul > li:nth-child(n+6):nth-child(-n+10) > a {
    /* Items 6-10: Slightly reduced (secondary sections) */
    opacity: 0.75;
    font-size: 0.875rem;  /* 14px */
    font-weight: 400;
    border-left-width: 1.5px;  /* Thinner border */
}

.toc-container .toc > ul > li:nth-child(n+11):nth-child(-n+15) > a {
    /* Items 11-15: More reduced (tertiary sections) */
    opacity: 0.60;
    font-size: 0.8125rem;  /* 13px - same as H3 */
    font-weight: 400;
    border-left-width: 1px;  /* Even thinner */
    padding-left: 0.875rem;  /* Slight indent effect */
}

.toc-container .toc > ul > li:nth-child(n+16) > a {
    /* Items 16+: Most reduced (deep sections) */
    opacity: 0.50;
    font-size: 0.8125rem;  /* 13px */
    font-weight: 400;
    border-left-width: 1px;
    padding-left: 0.875rem;
}

/* --------------------------------------------------------------------------
   Report Content - Editorial Reading Experience
   -------------------------------------------------------------------------- */
.report-content {
    min-width: 0;
    max-width: var(--content-width);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.75;
    letter-spacing: -0.01em;
}

/* Headings - Use display font, refined hierarchy */
.report-content h1,
.report-content h2,
.report-content h3,
.report-content h4,
.report-content h5,
.report-content h6 {
    font-family: var(--font-display);
    color: var(--color-text-heading);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.report-content h1 {
    font-size: 1.875rem;
    font-weight: 500;
    margin-top: var(--space-6);
    margin-bottom: var(--space-4);
}

.report-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-top: var(--space-6);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

/* Animated accent line under h2 on hover and when active */
.report-content h2::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    transition: width var(--transition-slow);
}

.report-content h2:hover::after,
.report-content h2.active-section::after {
    width: 120px;
}

/* Subtle glow on active section heading */
.report-content h2.active-section {
    color: var(--color-text-heading);
}

.report-content h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-top: var(--space-5);
    margin-bottom: var(--space-3);
    color: var(--color-text-primary);
    position: relative;
}

/* Animated accent line under h3 on hover and when active */
.report-content h3::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    transition: width var(--transition-slow);
}

.report-content h3:hover::after,
.report-content h3.active-section::after {
    width: 80px;
}

.report-content h4 {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-family: var(--font-sans);
    font-size: 0.8125rem;
}

/* Paragraphs - Optimal reading comfort */
.report-content p {
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
    text-wrap: pretty;
}

/* First paragraph after heading - slightly emphasized */
.report-content h2 + p,
.report-content h3 + p {
    color: var(--color-text-primary);
}

.report-content strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.report-content em {
    font-style: italic;
    color: var(--color-text-primary);
}

/* Lists - Refined visual hierarchy */
.report-content ul,
.report-content ol {
    margin-bottom: var(--space-4);
    padding-left: 0;
    list-style: none;
}

.report-content ol {
    counter-reset: list-counter;
}

.report-content li {
    position: relative;
    margin-bottom: var(--space-2);
    padding-left: var(--space-5);
    color: var(--color-text-secondary);
}

/* Custom bullet for unordered lists */
.report-content ul > li::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0.6em;
    width: 5px;
    height: 5px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.8;
}

/* Custom numbers for ordered lists */
.report-content ol > li {
    counter-increment: list-counter;
}

.report-content ol > li::before {
    content: counter(list-counter);
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-mono);
    font-size: 0.75em;
    font-weight: 600;
    color: var(--color-accent);
    opacity: 0.9;
    min-width: 1.25rem;
}

/* Nested list variations */
.report-content li > ul,
.report-content li > ol {
    margin-top: var(--space-2);
    margin-bottom: var(--space-2);
}

/* Second level bullets - smaller, muted */
.report-content li > ul > li::before {
    width: 4px;
    height: 4px;
    background: var(--color-text-muted);
    opacity: 0.5;
}

/* Third level bullets - dash style */
.report-content li > ul > li > ul > li::before {
    width: 8px;
    height: 1px;
    border-radius: 0;
    top: 0.75em;
}

/* Blockquotes - Clean callout style */
.report-content blockquote {
    margin: var(--space-5) 0;
    padding: var(--space-4) var(--space-5);
    background: var(--color-bg-secondary);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.report-content blockquote p {
    margin-bottom: 0;
    color: var(--color-text-primary);
}

/* Code - Refined monospace styling */
.report-content code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--color-bg-tertiary);
    padding: 3px 7px;
    border-radius: 4px;
    color: var(--color-accent);
    border: 1px solid var(--color-border-subtle);
}

.report-content pre {
    margin: var(--space-5) 0;
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

.report-content pre code {
    background: none;
    padding: 0;
    border: none;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Tables - Compact elevated card style */
.report-content table {
    width: 100%;
    margin: var(--space-4) 0;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.8125rem;
    line-height: 1.4;
    font-family: var(--font-sans);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.report-content th,
.report-content td {
    padding: 0.5rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border-subtle);
}

.report-content th {
    font-weight: 600;
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
}

.report-content td {
    color: var(--color-text-secondary);
}

.report-content tr:last-child td {
    border-bottom: none;
}

.report-content tr:hover td {
    background: var(--color-bg-tertiary);
}

/* Links - Subtle underline animation */
.report-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: var(--color-border-accent);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--transition);
}

.report-content a:hover {
    text-decoration-color: var(--color-accent);
}

/* Horizontal rules - Elegant divider */
.report-content hr {
    margin: var(--space-6) auto;
    border: none;
    height: 1px;
    width: 60%;
    background: linear-gradient(90deg,
        transparent,
        var(--color-border) 20%,
        var(--color-border) 80%,
        transparent
    );
}

/* Section spacing for visual rhythm */
.report-content > *:first-child {
    margin-top: 0;
}

/* ==========================================================================
   Appendix Section - De-emphasized supplementary content
   ========================================================================== */

/* Target appendix heading */
.report-content h2#appendix-sources,
.report-content h2[id^="appendix"],
.report-content h2[id^="sources"],
.report-content h2[id^="references"] {
    font-size: 0.9375rem !important;
    font-weight: 600 !important;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted) !important;
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px dashed var(--color-border);
    border-bottom: none !important;
    padding-bottom: 0;
}

/* No accent line animation for appendix headings */
.report-content h2#appendix-sources::after,
.report-content h2[id^="appendix"]::after,
.report-content h2[id^="sources"]::after,
.report-content h2[id^="references"]::after {
    display: none !important;
}

/* Style content after appendix heading */
.report-content h2#appendix-sources ~ *,
.report-content h2[id^="appendix"] ~ *,
.report-content h2[id^="sources"] ~ *,
.report-content h2[id^="references"] ~ * {
    font-size: 0.8125rem !important;
    line-height: 1.5;
    color: var(--color-text-muted) !important;
}

.report-content h2#appendix-sources ~ h3,
.report-content h2[id^="appendix"] ~ h3 {
    font-size: 0.875rem !important;
    color: var(--color-text-secondary) !important;
    margin-top: var(--space-4);
    margin-bottom: var(--space-2);
}

/* No accent line on appendix h3s */
.report-content h2#appendix-sources ~ h3::after,
.report-content h2[id^="appendix"] ~ h3::after {
    display: none !important;
}

.report-content h2#appendix-sources ~ p,
.report-content h2[id^="appendix"] ~ p {
    margin-bottom: var(--space-2);
}

.report-content h2#appendix-sources ~ ul li,
.report-content h2[id^="appendix"] ~ ul li {
    margin-bottom: 2px;
    color: var(--color-text-muted);
}

/* Links in appendix - subtler */
.report-content h2#appendix-sources ~ * a,
.report-content h2[id^="appendix"] ~ * a {
    color: var(--color-text-muted) !important;
    text-decoration-color: transparent;
}

.report-content h2#appendix-sources ~ * a:hover,
.report-content h2[id^="appendix"] ~ * a:hover {
    color: var(--color-accent) !important;
}

/* --------------------------------------------------------------------------
   Report Footer
   -------------------------------------------------------------------------- */
.report-footer {
    margin-top: var(--space-3);
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border);
    width: 100%;
}

.report-footer .disclaimer {
    width: 100%;
    max-width: none;
}

.report-nav {
    margin-bottom: 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: var(--space-2) var(--space-3);
    margin-left: calc(-1 * var(--space-3));
    border-radius: var(--radius);
    transition: all var(--transition);
}

.back-link:hover {
    color: var(--color-accent);
    background: var(--color-bg-tertiary);
    text-decoration: none;
}

.back-link::before {
    content: '←';
    font-size: 1.1em;
    transition: transform var(--transition);
}

.back-link:hover::before {
    transform: translateX(-3px);
}

.disclaimer {
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-lg);
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    line-height: 1.6;
    color: var(--color-text-muted);
}

.disclaimer strong {
    color: var(--color-text-secondary);
    font-weight: 600;
}

.disclaimer p {
    margin: 0;
}

/* --------------------------------------------------------------------------
   Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
    margin-top: var(--space-2);
    padding: var(--space-3);
    border-top: 1px solid var(--color-border);
    text-align: center;
    flex-shrink: 0;
}

/* Hide footer on index page for single-screen experience */
.page-index .site-footer {
    display: none;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
}

.site-footer .disclaimer {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    opacity: 0.6;
    margin-bottom: var(--space-1);
    background: none;
    border: none;
    padding: 0;
}

.footer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-brand {
    display: flex;
    align-items: center;
}

.footer-lockup {
    height: 56px;
    width: auto;
    color: var(--color-text-muted);
    overflow: visible;
}

.site-footer .copyright {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    letter-spacing: 0.05em;
}

.footer-social {
    display: flex;
    gap: var(--space-4);
}

.footer-social a {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-social a:hover {
    color: var(--color-text-primary);
}

/* --------------------------------------------------------------------------
   About Page
   -------------------------------------------------------------------------- */
.about-container {
    max-width: 560px;
    margin: 0 auto;
    padding: var(--space-6) var(--space-4);
    padding-top: var(--space-5);
    /* Grow to fill space and push footer to bottom */
    flex: 1 0 auto;
}

.about-section {
    margin-bottom: var(--space-5);
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-container h1,
.about-container h2 {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

.about-container p {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.about-container p:last-child {
    margin-bottom: 0;
}

.about-container ul {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-3) 0;
}

.about-container li {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    padding-left: var(--space-3);
    position: relative;
    margin-bottom: var(--space-1);
}

.about-container li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-border);
}

.about-container a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: var(--color-border-accent);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--transition);
}

.about-container a:hover {
    text-decoration-color: var(--color-accent);
}

.about-container details {
    margin-top: var(--space-2);
}

.about-container summary {
    cursor: pointer;
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 500;
    list-style: none;
}

.about-container summary::-webkit-details-marker {
    display: none;
}

.about-container summary::before {
    content: '+ ';
    font-family: var(--font-mono);
}

.about-container details[open] summary::before {
    content: '− ';
}

.about-container details p {
    margin-top: var(--space-3);
}

/* --------------------------------------------------------------------------
   Empty State
   -------------------------------------------------------------------------- */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-6);
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    /* Index page mobile - Critical fix for visibility */
    .index-container {
        min-height: auto;
        height: auto;
        /* Allow content to determine height, enable scrolling if needed */
        min-height: calc(100vh - var(--header-height));
        min-height: calc(100dvh - var(--header-height));
        overflow: visible;
        justify-content: flex-start;
        padding-top: var(--space-4);
        padding-bottom: var(--space-6);
        /* iOS: Prevent rubber-banding issues */
        -webkit-overflow-scrolling: touch;
    }

    .index-header {
        margin-bottom: var(--space-4);
    }

    .index-title {
        font-size: 1.75rem;
    }

    .index-subtitle {
        font-size: 0.8125rem;
    }

    .timeline-wrapper {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;  /* was: center — caused gap above timeline */
        min-height: 0;
        overflow: visible;
        padding-bottom: 100px;        /* Reserve space for event display */
    }

    .node-day {
        font-size: 1.75rem;
    }

    .node-month {
        font-size: 0.875rem;
    }

    .node-year {
        font-size: 0.75rem;
    }

    .timeline-node {
        padding: var(--space-2) var(--space-3);
    }

    .node-marker {
        width: 40px;
        height: 40px;
    }

    .timeline {
        gap: var(--space-3);
        padding: var(--space-3) var(--space-4);
        padding-bottom: 20px;
    }

    /* Recalculate track offset for mobile: below day number
       timeline-pad(16) + node-pad(8) + marker(40) + gap(8) + day(1.75rem) + clearance(4) */
    :root {
        --timeline-track-offset: calc(var(--space-3) + var(--space-2) + 40px + var(--space-2) + 1.75rem + 4px);
    }

    /* Touch-friendly animations for mobile */
    .timeline-node:active {
        transform: translateY(-2px);
    }

    .timeline-node:active .node-dot {
        background: var(--color-accent);
        border-color: var(--color-accent);
        box-shadow: 0 0 12px rgba(88, 166, 255, 0.5);
    }

    .timeline-node.is-free:active .node-dot {
        background: #3fb950;
        border-color: #3fb950;
        box-shadow: 0 0 12px rgba(63, 185, 80, 0.5);
    }

    .timeline-node:active .node-dot::before {
        animation: ripple 0.6s ease-out;
    }

    .timeline-node:active .node-day {
        color: var(--color-accent);
        letter-spacing: 0.02em;
    }

    .timeline-node:active .node-month {
        letter-spacing: 0.15em;
        color: var(--color-text-primary);
    }

    /* Hide scroll hint on mobile - touch scrolling is intuitive */
    .scroll-hint {
        display: none;
    }

    .report-title {
        font-size: 1.5rem;
    }

    /* Compact report header on mobile */
    .report-container {
        padding: var(--space-3) var(--space-3);
    }

    .report-header {
        margin-bottom: var(--space-4);
        padding-bottom: var(--space-3);
    }

    .report-meta {
        gap: var(--space-2);
        flex-wrap: wrap;
    }

    .report-meta time {
        font-size: 0.8125rem;
    }

    .badge {
        font-size: 0.625rem;
        padding: 3px 6px;
    }

    .reading-time {
        font-size: 0.8125rem;
    }

    .region-pills {
        display: none;
    }

    .report-content {
        font-size: 0.9375rem;
    }

    /* Report page layout - stack vertically on mobile */
    .report-page {
        flex-direction: column;
    }

    /* Content fade overlays - prevent text bleeding through fixed UI on mobile */
    .page-report::before,
    .page-report::after {
        content: '';
        position: fixed;
        left: 0;
        right: 0;
        pointer-events: none;
        z-index: 40;
    }

    /* Top fade - below header */
    .page-report::before {
        top: var(--header-height);
        height: 40px;
        background: linear-gradient(to bottom,
            rgba(13, 17, 23, 1) 0%,
            rgba(13, 17, 23, 0.8) 25%,
            rgba(13, 17, 23, 0) 100%);
    }

    /* Bottom fade - above mobile controls bar */
    .page-report::after {
        bottom: 0;
        height: 100px;
        background: linear-gradient(to top,
            rgba(13, 17, 23, 1) 0%,
            rgba(13, 17, 23, 0.9) 25%,
            rgba(13, 17, 23, 0.6) 60%,
            rgba(13, 17, 23, 0) 100%);
    }

    /* Timeline becomes horizontal strip at bottom on mobile */
    .timeline-sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        width: 100%;
        height: 48px;
        /* iOS Safari: Account for home indicator safe area */
        height: calc(48px + env(safe-area-inset-bottom, 0px));
        padding-bottom: env(safe-area-inset-bottom, 0px);
        flex-direction: row;
        border-right: none;
        border-top: 1px solid rgba(42, 48, 60, 0.4);
        background: rgba(12, 14, 18, 0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        z-index: 50;
        /* iOS Safari: Prevent tap-through issues */
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }

    .timeline-sidebar-header {
        flex-direction: row;
        border-bottom: none;
        border-right: 1px solid var(--color-border);
        padding: var(--space-2);
        gap: var(--space-1);
    }

    .timeline-label {
        writing-mode: horizontal-tb;
        display: none;
    }

    .vertical-timeline {
        display: flex;
        flex-direction: row;
        flex: 1;
        align-items: center;
        overflow-x: auto;
        overflow-y: hidden;
        padding: 0 var(--space-2);
        gap: var(--space-1);
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x proximity;
        /* iOS Safari: Force GPU layer for smooth scrolling */
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }

    .timeline-line {
        display: none;
    }

    .timeline-item {
        flex-direction: row;
        flex: 0 0 auto;
        min-width: max-content;
        padding: var(--space-1) var(--space-2);
        gap: var(--space-2);
        scroll-snap-align: center;
    }

    .timeline-dot {
        margin-bottom: 0;
        width: 6px;
        height: 6px;
    }

    .timeline-date {
        flex-direction: row;
        gap: var(--space-1);
        white-space: nowrap;
    }

    .timeline-day {
        font-size: 0.875rem;
    }

    .timeline-month {
        font-size: 0.625rem;
    }

    .timeline-year {
        margin-top: 0;
        margin-left: 2px;
        font-size: 0.5rem;
    }

    /* Add padding at bottom of content for mobile timeline + TOC button */
    .report-container {
        padding-bottom: 64px;
        /* iOS Safari: Account for safe area */
        padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px));
    }

    /* Hide desktop TOC sidebar on mobile */
    .toc-sidebar {
        display: none;
    }

    /* Mobile TOC Button */
    .mobile-toc-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        position: fixed;
        bottom: 80px;
        right: var(--space-3);
        width: 48px;
        height: 48px;
        background: var(--color-bg-secondary);
        border: 1px solid var(--color-border);
        border-radius: 50%;
        color: var(--color-text-secondary);
        box-shadow: var(--shadow);
        z-index: 60;
        cursor: pointer;
        transition: all var(--transition);
    }

    .mobile-toc-toggle:hover,
    .mobile-toc-toggle:active {
        background: var(--color-bg-tertiary);
        color: var(--color-accent);
    }

    .mobile-toc-toggle svg {
        width: 20px;
        height: 20px;
    }

    /* Mobile TOC Drawer */
    .mobile-toc-drawer {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        max-height: 60vh;
        background: var(--color-bg-secondary);
        border-top: 1px solid var(--color-border);
        border-radius: var(--radius) var(--radius) 0 0;
        transform: translateY(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 100;
        overflow: hidden;
    }

    .mobile-toc-drawer.open {
        transform: translateY(0);
    }

    .mobile-toc-drawer-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: var(--space-3);
        border-bottom: 1px solid var(--color-border);
    }

    .mobile-toc-drawer-title {
        font-size: 0.875rem;
        font-weight: 600;
        color: var(--color-text-primary);
    }

    .mobile-toc-close {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 32px;
        height: 32px;
        background: transparent;
        border: none;
        color: var(--color-text-muted);
        cursor: pointer;
        border-radius: var(--radius);
    }

    .mobile-toc-close:hover {
        background: var(--color-bg-tertiary);
        color: var(--color-text-primary);
    }

    .mobile-toc-close svg {
        width: 18px;
        height: 18px;
    }

    .mobile-toc-content {
        padding: var(--space-3);
        overflow-y: auto;
        max-height: calc(60vh - 56px);
        -webkit-overflow-scrolling: touch;
    }

    .mobile-toc-content .toc {
        list-style: none;
    }

    .mobile-toc-content .toc ul {
        list-style: none;
        padding-left: var(--space-3);
    }

    .mobile-toc-content .toc li {
        margin-bottom: var(--space-2);
    }

    .mobile-toc-content .toc a {
        display: block;
        font-size: 0.9375rem;
        font-weight: 600;
        color: var(--color-text-secondary);
        padding: var(--space-2) 0;
        border-bottom: 1px solid var(--color-border-subtle);
    }

    .mobile-toc-content .toc ul ul a {
        font-size: 0.8125rem;
        font-weight: 400;
        opacity: 0.8;
        padding: var(--space-2) 0;
    }

    /* Fallback: Strong visual differentiation for flat H2-only TOCs on mobile */
    .mobile-toc-content .toc > ul > li:nth-child(n+1):nth-child(-n+5) > a {
        /* First 5 items: Full weight */
        opacity: 1;
        font-size: 0.9375rem;  /* 15px */
        font-weight: 600;
    }

    .mobile-toc-content .toc > ul > li:nth-child(n+6):nth-child(-n+10) > a {
        /* Items 6-10: Reduced */
        opacity: 0.70;
        font-size: 0.875rem;  /* 14px */
        font-weight: 500;
    }

    .mobile-toc-content .toc > ul > li:nth-child(n+11):nth-child(-n+15) > a {
        /* Items 11-15: More reduced */
        opacity: 0.55;
        font-size: 0.8125rem;  /* 13px */
        font-weight: 400;
    }

    .mobile-toc-content .toc > ul > li:nth-child(n+16) > a {
        /* Items 16+: Most reduced */
        opacity: 0.45;
        font-size: 0.8125rem;  /* 13px */
        font-weight: 400;
    }

    .mobile-toc-content .toc a:hover {
        color: var(--color-accent);
        text-decoration: none;
    }

    /* Overlay when drawer is open */
    .mobile-toc-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 90;
    }

    .mobile-toc-overlay.open {
        display: block;
    }
}

/* Hide mobile TOC elements on desktop */
.mobile-toc-toggle,
.mobile-toc-drawer,
.mobile-toc-overlay {
    display: none;
}

/* ==========================================================================
   Mobile TOC Browser
   ========================================================================== */

/* Hidden on desktop, shown on mobile */
.mobile-toc {
    display: none;
}

@media (max-width: 1024px) {
    .mobile-toc {
        display: block;
    }
}

/* --------------------------------------------------------------------------
   Mobile Controls Bar - TOC + Depth Selector together
   -------------------------------------------------------------------------- */
.mobile-controls-bar {
    position: fixed;
    bottom: calc(48px + var(--space-1));
    /* iOS Safari: Account for safe area */
    bottom: calc(48px + var(--space-1) + env(safe-area-inset-bottom, 0px));
    left: 50%;
    -webkit-transform: translateX(-50%);
    transform: translateX(-50%);
    z-index: 45;

    display: flex;
    align-items: center;
    gap: var(--space-2);

    transition: all var(--transition);
}

/* Hide bar when TOC sheet is open */
.mobile-toc.is-open .mobile-controls-bar {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(20px);
}

/* --------------------------------------------------------------------------
   Collapsed Pill - Current Section Indicator
   -------------------------------------------------------------------------- */
.mobile-toc-pill {
    display: flex;
    align-items: center;
    gap: var(--space-2);

    padding: var(--space-2) var(--space-3);
    background: rgba(22, 27, 34, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);

    font-family: var(--font-sans);
    font-size: 0.8125rem;
    color: var(--color-text-primary);
    cursor: pointer;

    transition: all var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.mobile-toc-pill:hover,
.mobile-toc-pill:focus {
    background: var(--color-bg-tertiary);
    border-color: var(--color-accent);
    outline: none;
}

.mobile-toc-pill:active {
    transform: scale(0.97);
}

.mobile-toc-pill-label {
    font-weight: 600;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mobile-toc-pill-chevron {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
    transition: transform var(--transition);
    flex-shrink: 0;
}

/* Pill state when sheet is open - controlled by parent .mobile-controls-bar */

/* --------------------------------------------------------------------------
   Mobile Inline Depth Selector (next to TOC pill)
   -------------------------------------------------------------------------- */
.mobile-depth-inline {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px;
    background: rgba(22, 27, 34, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.mobile-depth-btn {
    padding: 6px 12px;
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: 999px;
    transition: all var(--transition);
    border: none;
    background: none;
    -webkit-tap-highlight-color: transparent;
}

.mobile-depth-btn:active {
    transform: scale(0.95);
}

.mobile-depth-btn.active {
    background: var(--color-accent-muted);
    color: var(--color-accent);
}

.mobile-depth-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Mobile Region Pill (bottom controls bar)
   -------------------------------------------------------------------------- */
.mobile-region-pill-wrapper {
    position: relative;
}

.mobile-region-pill-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: rgba(22, 27, 34, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: all var(--transition);
}

.mobile-region-pill-btn[aria-expanded="true"] {
    border-color: var(--color-accent);
    background: var(--color-bg-tertiary);
}

.mobile-region-pill-chevron {
    width: 14px;
    height: 14px;
    opacity: 0.7;
    flex-shrink: 0;
    transition: transform var(--transition);
}

.mobile-region-pill-btn[aria-expanded="true"] .mobile-region-pill-chevron {
    transform: rotate(180deg);
}

.mobile-region-flag {
    font-size: 1rem;
    line-height: 1;
}

.mobile-region-code {
    font-family: var(--font-sans);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.mobile-region-dropdown {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 4px;
    background: rgba(22, 27, 34, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    min-width: 100px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    z-index: 50;
}

.mobile-region-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-region-option,
.mobile-region-option:hover,
.mobile-region-option:active,
.mobile-region-option:visited {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border-radius: 8px;
    text-decoration: none;
    transition: background var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.mobile-region-option:hover,
.mobile-region-option:active {
    background: rgba(255, 255, 255, 0.06);
}

.mobile-region-option.active {
    background: var(--color-accent-muted);
}

.mobile-region-option-flag {
    font-size: 1.125rem;
    line-height: 1;
}

.mobile-region-option-code {
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--color-text-primary);
}

.mobile-region-option.active .mobile-region-option-code {
    color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Backdrop Overlay
   -------------------------------------------------------------------------- */
.mobile-toc-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 55;

    opacity: 0;
    visibility: hidden;
    transition: opacity 300ms ease, visibility 300ms ease;
}

.mobile-toc.is-open .mobile-toc-backdrop {
    opacity: 1;
    visibility: visible;
}

/* --------------------------------------------------------------------------
   Bottom Sheet
   -------------------------------------------------------------------------- */
.mobile-toc-sheet {
    position: fixed;
    bottom: 64px;
    /* iOS Safari: Account for safe area */
    bottom: calc(64px + env(safe-area-inset-bottom, 0px));
    left: 0;
    right: 0;
    z-index: 60;

    /* Explicit height needed for flex children to get proper sizing */
    height: calc(60vh - 64px);
    height: calc(60dvh - 64px);
    /* iOS Safari: Use max-height to prevent overflow */
    max-height: calc(60dvh - 64px - env(safe-area-inset-bottom, 0px));

    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    border-radius: 16px 16px 0 0;

    display: flex;
    flex-direction: column;

    /* Hidden by default - use visibility + transform for iOS Safari */
    visibility: hidden;
    -webkit-transform: translateY(100%);
    transform: translateY(100%);
    -webkit-transition: -webkit-transform 300ms cubic-bezier(0.32, 0.72, 0, 1),
                        visibility 0ms 300ms;
    transition: transform 300ms cubic-bezier(0.32, 0.72, 0, 1),
                visibility 0ms 300ms; /* Delay visibility until transform completes */

    padding-bottom: env(safe-area-inset-bottom, 0);
    -webkit-overflow-scrolling: touch;
    /* iOS Safari: Force GPU layer */
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.mobile-toc.is-open .mobile-toc-sheet {
    visibility: visible;
    -webkit-transform: translateY(0);
    transform: translateY(0);
    -webkit-transition: -webkit-transform 300ms cubic-bezier(0.32, 0.72, 0, 1),
                        visibility 0ms 0ms;
    transition: transform 300ms cubic-bezier(0.32, 0.72, 0, 1),
                visibility 0ms 0ms; /* Show immediately */
}

.mobile-toc-sheet.is-dragging {
    transition: none;
}

/* --------------------------------------------------------------------------
   Drag Handle
   -------------------------------------------------------------------------- */
.mobile-toc-handle {
    display: flex;
    justify-content: center;
    padding: var(--space-2) 0;
    cursor: grab;
}

.mobile-toc-handle-bar {
    width: 36px;
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    transition: background var(--transition);
}

.mobile-toc-handle:hover .mobile-toc-handle-bar,
.mobile-toc-handle:active .mobile-toc-handle-bar {
    background: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Sheet Header
   -------------------------------------------------------------------------- */
.mobile-toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-4) var(--space-3);
    border-bottom: 1px solid var(--color-border);
}

.mobile-toc-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.mobile-toc-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;

    background: transparent;
    border: none;
    border-radius: var(--radius);
    color: var(--color-text-muted);
    cursor: pointer;

    transition: all var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.mobile-toc-close:hover,
.mobile-toc-close:focus {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    outline: none;
}

.mobile-toc-close svg {
    width: 20px;
    height: 20px;
}

/* --------------------------------------------------------------------------
   TOC Navigation List
   -------------------------------------------------------------------------- */
.mobile-toc-nav {
    /* iOS Safari fix: use min-height: 0 to allow flex child to shrink and scroll */
    flex: 1 1 0;
    min-height: 0;
    overflow-y: auto;
    overflow-y: scroll; /* iOS Safari: force scrollbar presence */
    overscroll-behavior: contain;
    padding: var(--space-3) var(--space-4);
    -webkit-overflow-scrolling: touch;
}

.mobile-toc-nav .toc {
    list-style: none;
}

.mobile-toc-nav .toc ul {
    list-style: none;
    padding-left: var(--space-4);
}

.mobile-toc-nav .toc li {
    margin-bottom: var(--space-1);
}

.mobile-toc-nav .toc a {
    display: flex;
    align-items: center;
    gap: var(--space-2);

    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius);
    border-left: 3px solid transparent;

    transition: all var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.mobile-toc-nav .toc a:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    text-decoration: none;
}

.mobile-toc-nav .toc a.active {
    background: rgba(88, 166, 255, 0.1);
    color: var(--color-accent);
    border-left-color: var(--color-accent);
    font-weight: 500;
}

/* Nested items (h3s) - slightly smaller */
.mobile-toc-nav .toc ul ul a {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    opacity: 0.8;
    padding: var(--space-2) var(--space-3);
}

/* Active indicator dot */
.mobile-toc-nav .toc a.active::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ==========================================================================
   Scroll Reveal Animations for Report Content
   ========================================================================== */

/* Initial state for sections - hidden */
.report-content > h2,
.report-content > h3,
.report-content > blockquote,
.report-content > table,
.report-content > pre {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Revealed state */
.report-content > h2.revealed,
.report-content > h3.revealed,
.report-content > blockquote.revealed,
.report-content > table.revealed,
.report-content > pre.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered reveal for lists */
.report-content > ul,
.report-content > ol {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.report-content > ul.revealed,
.report-content > ol.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Focus Styles - Accessibility
   ========================================================================== */

/* Custom focus ring for interactive elements */
a:focus-visible,
button:focus-visible,
.toc-container .toc a:focus-visible,
.back-link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    body::before {
        display: none;
    }

    .site-header,
    .timeline-sidebar,
    .toc-sidebar,
    .mobile-toc,
    .reading-progress,
    .report-nav {
        display: none !important;
    }

    .report-page {
        display: block;
    }

    .report-content {
        max-width: 100%;
        font-size: 12pt;
    }

    .report-content a {
        color: inherit;
        text-decoration: underline;
    }

    .report-content a::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }
}

/* --------------------------------------------------------------------------
   Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .mobile-toc-backdrop,
    .mobile-toc-sheet,
    .mobile-toc-pill {
        transition: none;
    }

    /* Disable timeline entrance animations */
    .index-title,
    .index-subtitle,
    .timeline-node {
        animation: none;
        opacity: 1;
        transform: none;
    }

    .timeline-track {
        animation: none;
        transform: translateY(var(--timeline-track-offset)) scaleX(1);
    }

    /* Disable scroll reveal animations */
    .report-content > h2,
    .report-content > h3,
    .report-content > blockquote,
    .report-content > table,
    .report-content > pre,
    .report-content > ul,
    .report-content > ol {
        opacity: 1;
        transform: none;
        transition: none;
    }

    /* Disable hover animations */
    .report-content h2::after {
        display: none;
    }

    .back-link::before {
        transition: none;
    }
}

/* ==========================================================================
   Authentication Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   Flash Messages - Ephemeral Toast Design
   -------------------------------------------------------------------------- */
.flash-messages {
    position: fixed;
    top: calc(var(--header-height) + 120px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1002;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    pointer-events: none;
}

.flash-message {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: rgba(30, 30, 30, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: none;
    border-radius: 100px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    font-size: 0.875rem;
    color: var(--color-text-primary);
    pointer-events: auto;
    animation: toastSlideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    -webkit-tap-highlight-color: transparent;
    will-change: transform, opacity;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toastFadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-8px);
    }
}

.flash-message.fade-out {
    animation: toastFadeOut 0.3s cubic-bezier(0.4, 0, 1, 1) forwards;
}

/* Success - soft green tint */
.flash-message.flash-success {
    background: rgba(104, 211, 145, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #a8e6cf;
}

/* Error - soft red tint */
.flash-message.flash-error {
    background: rgba(245, 101, 101, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #feb2b2;
}

/* Info - soft blue tint (accent color) */
.flash-message.flash-info {
    background: rgba(99, 179, 237, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #90cdf4;
}

/* Mobile adjustments */
@media (max-width: 480px) {
    .flash-messages {
        max-width: calc(100% - var(--space-6));
    }

    .flash-message {
        padding: var(--space-2) var(--space-3);
        font-size: 0.813rem;
        text-align: center;
    }
}

/* --------------------------------------------------------------------------
   Nav Auth Elements
   -------------------------------------------------------------------------- */
.site-header nav .user-info {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    color: var(--color-text-secondary);
    font-size: 0.6875rem;
    text-transform: none;
    letter-spacing: normal;
}

.site-header nav .user-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.site-header nav .user-name {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.site-header nav .nav-auth-btn {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius);
}

.site-header nav .nav-login-btn,
.site-header nav .nav-logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-2);
    background: transparent;
    color: var(--color-text-muted);
    border-radius: 50%;
    width: 32px;
    height: 32px;
}

.site-header nav .nav-login-btn:hover,
.site-header nav .nav-logout-btn:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.site-header nav .nav-login-btn svg,
.site-header nav .nav-logout-btn svg {
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Auth Pages Common Styles
   -------------------------------------------------------------------------- */
.auth-container {
    min-height: calc(100vh - var(--header-height) - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6) var(--space-4);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.auth-header {
    padding: var(--space-6) var(--space-5) var(--space-4);
    text-align: center;
}

.auth-header h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: var(--space-2);
}

.auth-header p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.auth-header p strong {
    color: var(--color-accent);
}

.auth-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-4);
    background: var(--color-bg-tertiary);
    border-radius: 50%;
    color: var(--color-accent);
}

.auth-icon-lock {
    color: var(--color-warning);
}

.auth-icon-wave {
    color: var(--color-success);
    background: rgba(104, 211, 145, 0.1);
}

.auth-body {
    padding: var(--space-4) var(--space-5) var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.auth-message {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    text-align: center;
}

.auth-footer {
    padding: var(--space-4) var(--space-5);
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
}

.auth-note {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    text-align: center;
    line-height: 1.5;
}

.auth-note a {
    color: var(--color-accent);
}

.auth-hint {
    color: var(--color-text-muted);
    font-size: 0.8125rem;
    text-align: center;
}

/* --------------------------------------------------------------------------
   Auth Buttons
   -------------------------------------------------------------------------- */
.auth-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
}

.auth-btn-primary {
    background: var(--color-accent);
    color: var(--color-bg-primary);
}

.auth-btn-primary:hover {
    background: var(--color-accent-emphasis);
    text-decoration: none;
}

.auth-btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

.auth-btn-secondary:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
    text-decoration: none;
}

/* --------------------------------------------------------------------------
   Google Sign-In Button
   -------------------------------------------------------------------------- */
.google-signin-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: #fff;
    color: #3c4043;
    border-radius: var(--radius);
    font-family: 'Roboto', var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.google-signin-btn:hover {
    background: #f8f9fa;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    text-decoration: none;
}

.google-icon {
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Request Access Page
   -------------------------------------------------------------------------- */
.request-info {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius);
    padding: var(--space-3) var(--space-4);
}

.request-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-2) 0;
}

.request-info-row:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.request-label {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.request-value {
    color: var(--color-text-primary);
    font-size: 0.875rem;
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   Auth Pages Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
    .auth-card {
        border-radius: 0;
        border-left: none;
        border-right: none;
    }

    .auth-container {
        padding: var(--space-4) 0;
        align-items: flex-start;
    }

    .site-header nav .user-name {
        display: none;
    }

    /* Mobile header: prevent horizontal overflow */
    .site-header {
        padding: 0 var(--space-3);
    }

    .site-header .logo-text {
        display: none;  /* Hide "macroread Beta" on small mobile — logo mark is enough */
    }

    .site-header nav {
        gap: var(--space-1);
    }

    .site-header nav a {
        padding: var(--space-2);
        font-size: 0.625rem;
        letter-spacing: 0.05em;
    }
}

/* ==========================================================================
   Citation Recency Highlighting (Traffic Light: Green → Yellow → Gray)
   - Recent (0-7 days): Green - fresh data
   - Older (7-30 days): Yellow - aging data
   - Oldest (30+ days): Gray - stale data
   Option 6 colors: Slightly softer (#00dd77, #e6c84a, #555)
   ========================================================================== */

/* Base citation styles */
.cite-recent,
.cite-older,
.cite-oldest {
    position: relative;
    cursor: default;
    transition: all 0.15s ease;
}

/* Recent: 0-7 days (Softer Green) */
.cite-recent {
    color: #00dd77;
    font-weight: 500;
}

/* Older: 7-30 days (Softer Yellow/Amber) */
.cite-older {
    color: #e6c84a;
    font-weight: 500;
}

/* Oldest: 30+ days (Softer Gray) */
.cite-oldest {
    color: #555;
}

/* Tooltip - appears on hover (desktop) or tap (mobile via JS) */
.cite-recent::after,
.cite-older::after,
.cite-oldest::after {
    content: attr(data-age);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    background: #1a1a1e;
    border: 1px solid #2a2a2e;
    color: #9a9aa3;
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    font-weight: 400;
    padding: 4px 8px;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
    z-index: 100;
}

/* Color-matched tooltip borders */
.cite-recent::after {
    border-color: rgba(0, 221, 119, 0.3);
    color: #00dd77;
}

.cite-older::after {
    border-color: rgba(230, 200, 74, 0.3);
    color: #e6c84a;
}

.cite-oldest::after {
    border-color: rgba(85, 85, 85, 0.4);
    color: #777;
}

/* Desktop: show tooltip on hover */
@media (hover: hover) {
    .cite-recent:hover::after,
    .cite-older:hover::after,
    .cite-oldest:hover::after {
        opacity: 1;
        transform: translateX(-50%) translateY(-8px);
    }
}

/* Mobile: tooltip shown via JS by adding .tooltip-active class */
.cite-recent.tooltip-active::after,
.cite-older.tooltip-active::after,
.cite-oldest.tooltip-active::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-8px);
}

/* Hide tooltip if no data-age attribute */
.cite-recent:not([data-age])::after,
.cite-older:not([data-age])::after,
.cite-oldest:not([data-age])::after {
    display: none;
}