:root {
    --eye-open-x: 53%;
    --eye-open-y: 47%;
    --eye-close-x: 43%;
    --eye-close-y: 53%;

    --c-brainrot: #6366f1;
    --c-gaming:   #22c55e;
    --c-sports:   #f59e0b;
    --c-fafo:     #ef4444;
    --c-text:     #e8e6e0;
    --c-muted:    #888;
    --c-bg:       #000;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { }

body {
    background: #fff;
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
}

#opening, #closing {
    overflow-x: clip;
}

/* ─── Audio button ─── */

.audio-btn {
    position: fixed; top: max(1rem, env(safe-area-inset-top, 0px)); right: max(1rem, env(safe-area-inset-right, 0px)); z-index: 200;
    opacity: 0; pointer-events: none;
    display: flex; align-items: center; gap: 0.4rem;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    border: 1px solid #444;
    border-radius: 20px;
    padding: 0.4rem 0.8rem;
    cursor: pointer;
    color: #fff;
    font-size: 0.8rem;
    transition: background 0.2s;
}
.audio-btn.visible { opacity: 1; pointer-events: auto; }
.audio-btn:hover { background: rgba(0,0,0,0.8); }
.audio-icon { font-size: 1.1rem; }
.audio-label { font-size: 0.7rem; color: #aaa; }

/* ─── Opening + Closing scenes ─── */

#opening {
    position: relative;
    width: 100%;
    height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    overflow: hidden;
}

#closing {
    position: relative;
    width: 100%;
    height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    overflow: hidden;
}

.scene-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    z-index: 1;
}

.meme-img {
    width: min(500px, 80vw);
    height: auto;
    will-change: transform;
    display: block;
}

#meme-open  { transform-origin: var(--eye-open-x) var(--eye-open-y); }
#meme-close { transform-origin: var(--eye-close-x) var(--eye-close-y); }

.intro-text {
    font-family: 'Newsreader', serif;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: #111;
    text-align: center;
    max-width: 480px;
    line-height: 1.6;
    padding: 0 1rem;
}

.content-warning {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    color: #999;
    text-align: center;
    max-width: 520px;
    line-height: 1.5;
    padding: 0 1rem;
}

.outro-text {
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    color: #888;
    text-align: center;
}

.outro-text a {
    color: #4a7abf;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
}
.outro-game a { text-decoration: none; color: #6ba3ff; text-transform: uppercase; letter-spacing: 0.08em; font-size: 1.1rem; }
.waving-text span {
    display: inline-block;
    animation: wave 1.2s ease-in-out infinite;
}
@keyframes wave {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}
.outro-text a:hover { color: #111; }
.outro-links { display: flex; flex-direction: column; gap: 0.4rem; }

.outro-author {
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    color: #aaa;
    text-align: center;
    margin-top: 0.5rem;
}
.outro-author a {
    color: #4a7abf;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
}
.outro-author a:hover { color: #111; }

.black-overlay {
    position: absolute;
    inset: 0;
    background: #000;
    opacity: 0;
    pointer-events: none;
    z-index: 10;
}

/* Suppress CSS transitions during state swaps (prevents mobile flicker) */
.notransition, .notransition * {
    transition: none !important;
}

.eye-text {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100;
    font-family: 'Newsreader', serif;
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    color: #e8e6e0;
    text-align: center;
    max-width: 560px;
    line-height: 1.7;
    opacity: 0;
    pointer-events: none;
}

/* ─── Grid (ported from war-memes) ─── */

#viz-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    flex-direction: column;
    padding: 5px 0 0 0;
    background: #000;
    overflow: hidden;
    z-index: 2;
}

#wh-grid-timeline {
    display: flex;
    width: 100%;
    margin-bottom: 1px;
    position: relative;
    height: 1.2em;
    flex-shrink: 0;
}

.wh-timeline-month {
    font-size: 0.6rem;
    color: #fff;
    text-align: left;
    padding-left: 2px;
    border-left: 1px solid #333;
    white-space: nowrap;
    overflow: hidden;
}
.wh-timeline-month:first-child { border-left: none; }

#wh-grid {
    flex: 1;
    min-height: 0;
    display: grid;
    grid-template-rows: repeat(15, 1fr);
    grid-auto-flow: column;
    gap: 1px;
    overflow: hidden;
}

@media (max-width: 768px) {
    #wh-grid {
        grid-template-rows: none;
        grid-template-columns: repeat(8, 1fr);
        grid-auto-flow: row;
        gap: 1px;
        overflow-y: auto; overflow-x: hidden;
    }
    #wh-grid-timeline { display: none; }
    .wh-month-label {
        display: block;
        grid-column: 1 / -1;
        font-size: 0.65rem;
        font-weight: 600;
        color: #fff;
        padding: 0.4rem 0.3rem 0.15rem;
        letter-spacing: 0.05em;
        border-top: 1px solid #333;
    }
}

.wh-month-label { display: none; }

.wh-cell {
    background: #1a1a1a;
    overflow: hidden;
    min-width: 0; min-height: 0;
    opacity: 1;
    transition: opacity 0.3s ease-out;
    will-change: opacity;
    contain: layout style paint;
}
.wh-cell img { width: 100%; height: 100%; object-fit: cover; display: block; }

@keyframes gridFadeIn {
    to { opacity: 1; }
}
.wh-cell.on { opacity: 1; }
.wh-cell.wh-dim { opacity: 0.4; }
.wh-cell.wh-highlight { opacity: 1; outline: 3px solid #faee00; outline-offset: -1px; z-index: 2; }
.wh-cell.wh-highlight-red { opacity: 1; outline: 3px solid #ff3b3b; outline-offset: -1px; z-index: 2; }
.wh-cell.wh-shaded { opacity: 1; z-index: 2; position: relative; }
.wh-cell.wh-shaded::after { content: ""; position: absolute; inset: 0; background: rgba(250, 238, 0, 0.35); pointer-events: none; }

#wh-video-box {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.92);
    opacity: 0; visibility: hidden;
    transition: opacity 0.4s, visibility 0.4s;
    z-index: 5;
}
#wh-video-box.active { opacity: 1; visibility: visible; }

.wh-video-phone {
    width: min(300px, 45vw);
    aspect-ratio: 9/16;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 80px rgba(0,0,0,0.6);
}
.wh-video-phone video { width: 100%; height: 100%; object-fit: cover; display: block; }
@media (max-width: 600px) { .wh-video-phone { width: 65vw; } }

#wh-vid-caption {
    margin-top: 12px;
    font-size: 0.8rem;
    color: #888;
    text-align: center;
    max-width: 350px;
}

/* ─── Lineage ─── */

#lin-focus .lin-vid {
    width: min(290px, 44vw);
    background: #000;
    border-radius: 16px;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
    box-shadow: 0 20px 80px rgba(0,0,0,0.6);
}
#lin-focus .lin-vid video {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
    outline: 1px solid rgba(255,255,255,0.15);
    outline-offset: -1px;
}
#lin-focus .lin-vid-footer {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 40px 12px 12px;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
}
#lin-focus .lin-vid-footer .lvf-handle { font-size: 0.6rem; color: #ccc; font-weight: 600; margin-bottom: 4px; text-align: left; }
#lin-focus .lin-vid-footer .lvf-caption { font-size: 0.75rem; font-weight: 600; color: #fff; line-height: 1.3; text-align: left; }
#lin-focus .lin-vid-footer .lvf-meta { font-size: 0.55rem; color: #aaa; margin-top: 3px; text-align: left; }

#lin-focus .lin-ann { max-width: 320px; margin-left: 16px; }
#lin-focus .lin-ann-phase {
    font-size: 0.6rem; font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase; margin-bottom: 6px;
}
#lin-focus .lin-ann-note {
    font-family: 'Newsreader', serif;
    font-size: 1.3rem; line-height: 1.7; color: #aaa;
}

#lin-focus .lin-pair {
    display: flex; gap: 24px; align-items: flex-start;
}
#lin-focus .lin-pair .lin-vid { width: min(220px, 35vw); }
#lin-focus .lin-pair.lin-pair--sm .lin-vid { width: min(150px, 25vw); }
#lin-focus .lin-pair + .lin-ann { max-width: 500px; margin-left: 0; }


/* Mini grid (16 opponents etc.) */
.lin-mini-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 6px;
    max-width: 680px;
}
.lin-mini-grid .lin-vid {
    width: 100% !important;
    box-shadow: none;
}
.lin-mini-grid .lin-vid-footer { display: none; }
@media (max-width: 700px) {
    .lin-mini-grid { grid-template-columns: repeat(4, 1fr); max-width: 65vw; gap: 3px; }
    .lin-mini-grid .lin-vid { border-radius: 2px !important; }
}

/* Produced grid */
.lin-prod-grid-wrap {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
    max-width: 550px;
}
.lin-prod-grid-cell {
    border-radius: 0;
    overflow: hidden;
    outline: 1px solid rgba(255,255,255,0.15);
    outline-offset: -1px;
}
.lin-prod-grid-cell video {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
}
@media (max-width: 700px) {
    .lin-prod-grid-wrap {
        grid-template-columns: repeat(5, 1fr);
        gap: 4px;
        max-width: 90vw;
    }
}

#lin-focus .lin-trans-text {
    font-family: 'Newsreader', serif;
    font-size: 1.2rem; color: #777; line-height: 1.8;
    max-width: 360px; text-align: center;
}

/* Timeline bar */
#lin-timeline {
    position: absolute;
    top: 50px; left: 5%; right: 5%;
    height: 120px;
    z-index: 31;
    display: none;
    overflow-x: clip;
    overflow-y: visible;
}
.lt-track {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    transition: transform 0.8s ease;
    transform: translateX(var(--shift, 0));
}
#lin-timeline.visible { display: block; }
#lin-timeline .lt-axis {
    position: absolute; top: 50px; left: 0; right: 0;
    height: 1px; background: #333;
}
#lin-timeline .lt-month {
    position: absolute; top: 54px; left: var(--pct);
    font-size: 0.5rem; color: #555;
    transform: translateX(-50%); white-space: nowrap;
}
#lin-timeline .lt-tick {
    position: absolute; top: 48px; left: var(--pct);
    width: 1px; height: 6px; background: #444;
    transform: translateX(-50%);
}
#lin-timeline .lt-node {
    position: absolute; top: 8px; left: var(--pct);
    width: 24px; aspect-ratio: 9/16;
    border-radius: 0; overflow: hidden;
    transform: translateX(-50%);
    opacity: 0.25;
    transition: opacity 0.3s, transform 0.3s;
    outline: 1px solid transparent; outline-offset: -1px;
}
#lin-timeline .lt-node img { width:100%;height:100%;object-fit:cover;display:block; }
#lin-timeline .lt-node.visited { opacity: 0.5; }
#lin-timeline .lt-node.current {
    opacity: 1; outline: 2px solid #fff; outline-offset: -1px;
    transform: translateX(-50%) scale(1.3); transform-origin: bottom center; z-index: 2;
    animation: node-activate 0.5s ease-out;
}
@keyframes node-activate {
    0% { box-shadow: 0 0 0 0 rgba(255,255,255,0.5); }
    50% { box-shadow: 0 0 10px 3px rgba(255,255,255,0.3); }
    100% { box-shadow: none; }
}
/* Color-coded war footage nodes */
#lin-timeline .lt-node.lt-tiered { opacity: 0.7; outline-width: 2px; outline-style: solid; outline-offset: -1px; }
#lin-timeline .lt-node.lt-tiered.current { opacity: 1; outline-offset: -1px; transform: translateX(-50%) scale(1.5); transform-origin: bottom center; z-index: 2; }
/* Legend */
.lt-legend {
    position: absolute; top: 76px; left: 0;
    display: flex; flex-direction: column; gap: 4px;
    transition: opacity 0.25s ease;
}
.lt-legend-title { font-size: 0.55rem; color: #aaa; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.lt-legend-item { font-size: 0.55rem; color: #888; display: flex; align-items: center; gap: 5px; white-space: nowrap; }
.lt-legend-dot { width: 8px; height: 12px; border-radius: 0; flex-shrink: 0; }

/* Zoom-out chart */
#lin-chart-wrap {
    display: none;
    position: absolute; inset: 0;
    align-items: center; justify-content: center;
    z-index: 32; background: #0a0a0f;
}
#lin-chart-wrap.visible { display: flex; }

.lc-col { display:flex;flex-direction:column;align-items:center;gap:3px; }
.lc-mini {
    width: 28px; aspect-ratio: 9/16; border-radius: 0;
    overflow: hidden; opacity: 0.5;
}
.lc-mini.hl { opacity: 1; outline: 1.5px solid; outline-offset: 1px; }
.lc-mini.target { outline: 2px solid #faee00; outline-offset: 2px; opacity: 1; width: 40px; }
.lc-mini img { width:100%;height:100%;object-fit:cover;display:block; }
.lc-line { width: 1.5px; height: 12px; background: #fff; opacity: 0.5; }
.lc-tag { font-size: 0.45rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin: 4px 0; }

@media (max-width: 700px) {
    #lin-card { flex-direction: column !important; gap: 20px !important; text-align: center; top: 50% !important; align-items: center !important; max-height: 88dvh; overflow: hidden; }
    #lin-focus .lin-vid { width: min(160px, 42vw); }
    #lin-focus .lin-ann { max-width: 82vw; margin-left: 0; width: 82vw; padding: 0 4vw; }
    #lin-focus .lin-ann-note { font-size: 1.15rem; line-height: 1.6; }
    #lin-focus .lin-pair { justify-content: center; }
    #lin-focus .lin-pair.lin-pair--sm {
        display: flex !important;
        flex-wrap: wrap !important;
        justify-content: center;
        gap: 6px !important;
        max-width: 180px;
        margin: 0 auto;
    }
    #lin-focus .lin-pair.lin-pair--sm .lin-vid { width: calc(50% - 3px) !important; flex-shrink: 0; border-radius: 8px !important; }
    /* 3 videos: wider container, 3 columns */
    #lin-focus .lin-pair.lin-pair--sm:has(.lin-vid:nth-child(3):last-child) { max-width: 240px; }
    #lin-focus .lin-pair.lin-pair--sm .lin-vid:first-child:nth-last-child(3),
    #lin-focus .lin-pair.lin-pair--sm .lin-vid:first-child:nth-last-child(3) ~ .lin-vid {
        width: calc(33.3% - 4px) !important; border-radius: 6px !important;
    }
    #lin-focus .lin-pair + .lin-ann { max-width: 90vw; }
    #step-nav {
        bottom: 12px; right: auto; left: 50%; transform: translateX(-50%);
    }
    #step-nav button { font-size: 1.5rem; padding: 8px 14px; color: #888; }
    .nav-hint { font-size: 0.65rem; }
    /* Hide timeline bar and profanity legend on mobile — waffle + text carry the story */
    #lin-timeline { display: none !important; }
    .lt-legend { display: none !important; }
    /* Mobile lineage progress indicator — vertical left */
    #lin-progress {
        position: absolute;
        top: 50%; left: max(10px, env(safe-area-inset-left, 0px));
        transform: translateY(-50%);
        z-index: 40;
        display: flex; align-items: center; gap: 8px;
        opacity: 0; pointer-events: none;
        transition: opacity 0.3s;
    }
    #lin-progress.visible { opacity: 1; }
    .lp-dots { display: flex; flex-direction: column; gap: 8px; }
    .lp-dot {
        width: 6px; height: 6px; border-radius: 50%;
        background: #333; transition: background 0.3s, transform 0.3s;
    }
    .lp-dot.active { background: #fff; transform: scale(1.4); }
    .lp-dot.past { background: #555; }
    .lp-label {
        font-family: 'Space Grotesk', sans-serif;
        font-size: 0.5rem; font-weight: 600;
        letter-spacing: 0.1em; text-transform: uppercase;
        color: #666;
        writing-mode: vertical-rl;
        transform: rotate(180deg);
    }
    /* Hide swipe nav on mobile — scroll drives navigation */
    #step-nav { display: none !important; }
    .emoji-bar { font-size: 0.9rem !important; letter-spacing: 1px !important; }
    .waffle-wrap { max-width: 90vw; margin: 0 auto; }
    .pkg-chart-inner { display: none !important; }
    #pkg-chart-mobile { display: flex !important; }
    .step-card--dramatic { max-width: 85vw !important; padding: 24px 20px !important; }
    [data-state="grid-final"] .step-card { padding-top: 48px !important; }
}

/* ─── Article section ─── */

#article {
    position: relative;
    background: var(--c-bg);
    color: var(--c-text);
    overflow-x: clip;
}

/* ─── Sticky viz container ─── */

#viz-container {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100dvh;
    overflow: hidden;
    z-index: 1;
}

#viz-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    display: none;
    height: 100%;
}

/* #viz-grid styles are in the grid section above */

/* ─── Video overlay ─── */

#video-overlay {
    position: absolute;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    width: 220px;
    background: rgba(10, 10, 30, 0.95);
    border-radius: 12px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s, border-radius 0.8s;
    z-index: 20;
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

#video-overlay.active {
    opacity: 1;
    pointer-events: auto;
    aspect-ratio: 9/16;
}

#inline-vid {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
}

#video-overlay-2 {
    position: fixed;
    top: 50%;
    right: 5%;
    transform: translateY(-50%);
    width: min(300px, 35vw);
    aspect-ratio: 9/16;
    background: rgba(10, 10, 30, 0.95);
    border-radius: 12px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s;
    z-index: 20;
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

#video-overlay-2.active {
    opacity: 1;
    pointer-events: auto;
}

#inline-vid-2 {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
}

#video-overlay-3,
#video-overlay-4 {
    position: fixed;
    display: none;
    background: rgba(10, 10, 30, 0.95);
    border-radius: 12px;
    overflow: hidden;
    z-index: 20;
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

#video-overlay-3.active,
#video-overlay-4.active {
    display: block;
}

#inline-vid-3,
#inline-vid-4 {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
}

#vid-caption {
    padding: 8px 12px;
    font-size: 11px;
    color: var(--c-muted);
    line-height: 1.4;
}

#vid-caption:empty {
    display: none;
}

/* ─── Comparison panel ─── */

#comparison-panel {
    position: absolute;
    bottom: 8%;
    left: 50%;
    transform: translateX(-50%);
    display: none;
    align-items: center;
    gap: 16px;
    background: rgba(10, 10, 30, 0.92);
    backdrop-filter: blur(12px);
    padding: 16px 24px;
    border-radius: 12px;
    z-index: 20;
    max-width: 90vw;
}

#comparison-panel.active {
    display: flex;
}

#comp-ancestor,
#comp-peak {
    text-align: center;
    font-size: 12px;
    color: var(--c-text);
    line-height: 1.4;
}

#comp-ancestor img,
#comp-peak img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    margin: 0 auto 6px;
}

#comp-arrow {
    font-size: 24px;
    color: var(--c-muted);
}

#comp-mutation {
    font-size: 11px;
    color: var(--c-muted);
    max-width: 200px;
    line-height: 1.4;
    font-style: italic;
}

/* ─── Stat counter ─── */

#stat-counter {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Inter', sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--c-text);
    text-align: center;
    opacity: 0;
    pointer-events: none;
    z-index: 20;
    text-shadow: 0 2px 20px rgba(0,0,0,0.8);
}

.pkg-chart-inner { margin: 0 auto; }
#pkg-chart-mobile { display: none; flex-direction: column; gap: 6px; width: 100%; }

/* ─── Step nav arrows ─── */
#step-nav {
    position: absolute;
    bottom: 24px; right: 24px;
    z-index: 40;
    display: none;
    gap: 8px;
}
#step-nav.visible { display: flex; }
#step-nav button {
    border: none;
    background: none;
    color: #666;
    font-size: 1.3rem;
    cursor: pointer;
    padding: 4px 8px;
    transition: color 0.2s;
}
#step-nav button:hover { color: #e8e6e0; }
.nav-hint { font-size: 0.7rem; color: #555; font-family: Inter, sans-serif; text-align: center; line-height: 1.4; }

/* ─── Scrolling text steps ─── */

.article-steps {
    position: relative;
    z-index: 10;
    pointer-events: none;
}

.a-step {
    min-height: 150dvh;
    display: flex;
    align-items: center;
    padding: 0 5%;
}

.a-step--tall {
    min-height: 150dvh;
}

.step-card {
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(12px);
    padding: 28px 32px;
    border-radius: 10px;
    max-width: 420px;
    pointer-events: auto;
    font-family: 'Newsreader', serif;
    font-size: clamp(0.95rem, 2vw, 1.15rem);
    line-height: 1.65;
    color: var(--c-text);
}

.step-card p + p {
    margin-top: 0.8em;
}

.step-card--track {
    border-left: 3px solid;
    padding-left: 28px;
}

.step-card--headline {
    text-align: center;
    padding: 4rem 5rem;
    background: rgba(0, 0, 0, 1);
    pointer-events: auto;
    border-radius: 0;
    width: 100vw;
    max-width: none;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}
.step-card--headline h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.08;
    margin-bottom: 1.5rem;
    color: #fff;
}
.step-card--headline .dek {
    font-family: 'Sora', sans-serif;
    font-size: clamp(0.9rem, 1.8vw, 1.15rem);
    color: #999;
    line-height: 1.7;
    margin-bottom: 1.2rem;
    font-weight: 400;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.step-card--headline .byline {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #fff;
}
.step-card--headline .pub-date {
    font-family: 'Sora', sans-serif;
    font-size: 0.8rem;
    color: #666;
    margin-top: 0.3rem;
}

.step-card--grid {
    background: rgba(0,0,0,0.88);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-left: 3px solid #ff3b3b;
    max-width: 380px;
    font-size: 1.05rem;
    line-height: 1.65;
    color: #ddd;
    font-family: 'Inter', sans-serif;
}

.step-card--grid strong { color: #fff; font-weight: 700; }

.step-card--center {
    margin: 0 auto;
    text-align: center;
    background: transparent;
    backdrop-filter: none;
}

.step-card--dramatic {
    max-width: 560px;
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    line-height: 1.7;
    background: #000;
    padding: 48px 48px;
    border-radius: 0;
}

.step-card--fixed {
    width: 560px;
    max-width: 80vw;
}

.a-step--first {
    min-height: 20dvh;
    padding-top: 0;
}

.a-step--short {
    min-height: 60dvh;
}

.step-card--kicker {
    max-width: 500px;
    text-align: center;
    margin: 0 auto;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
}

.step-track-label {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.4em;
}

.step-stat {
    font-family: 'Inter', sans-serif;
    font-weight: 800;
    font-size: clamp(1.4rem, 3vw, 2rem);
    line-height: 1.2;
    margin-bottom: 0.3em;
}

.step-date {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-muted);
    margin-bottom: 0.4em;
}

.step-accent {
    font-style: italic;
    color: #fff;
}

/* ─── SVG styles for D3 ─── */

.lineage-node {
    cursor: pointer;
    transition: opacity 0.3s;
}

.lineage-node circle {
    stroke-width: 2;
}

.lineage-node.peak circle {
    stroke-width: 3;
}

.lineage-node.dimmed {
    opacity: 0.12;
}

.lineage-link {
    fill: none;
    stroke-width: 1.5;
    opacity: 0.12;
    transition: opacity 0.4s, stroke-width 0.3s;
}

.lineage-link.active {
    opacity: 0.7;
    stroke-width: 2.5;
}

.lineage-label {
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    fill: var(--c-muted);
    text-anchor: middle;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.lineage-label.active {
    opacity: 1;
}

/* ─── Track labels on the left ─── */

.track-label {
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.3;
    transition: opacity 0.4s;
}

.track-label.active {
    opacity: 1;
}

/* ─── Grid cells (Beat 8) ─── */

.grid-cell {
    width: 8px;
    height: 8px;
    border-radius: 1px;
    position: absolute;
    transition: opacity 0.3s, background-color 0.5s;
}

.grid-cell.highlighted {
    box-shadow: 0 0 6px 2px rgba(255, 255, 255, 0.4);
    z-index: 2;
}

/* ─── Pulse animation for peak nodes ─── */

@keyframes pulse-glow {
    0%, 100% { filter: drop-shadow(0 0 4px currentColor); }
    50%      { filter: drop-shadow(0 0 12px currentColor); }
}

.lineage-node.peak.active circle {
    animation: pulse-glow 2s ease-in-out infinite;
}

/* ─── Responsive ─── */

@media (max-width: 768px) {
    .step-card {
        max-width: 90%;
        padding: 20px 24px;
    }

    #video-overlay,
    #video-overlay-2,
    #video-overlay-3,
    #video-overlay-4 {
        transform: none !important;
        width: clamp(130px, 40vw, 200px) !important;
    }

    /* Quadrant positions for mobile */
    .q-bl { left: max(5%, env(safe-area-inset-left, 0px)) !important; right: auto !important; top: auto !important; bottom: max(5%, env(safe-area-inset-bottom, 0px)) !important; }
    .q-tr { right: max(5%, env(safe-area-inset-right, 0px)) !important; left: auto !important; top: max(8%, env(safe-area-inset-top, 0px)) !important; bottom: auto !important; }
    .q-tl { left: max(5%, env(safe-area-inset-left, 0px)) !important; right: auto !important; top: max(8%, env(safe-area-inset-top, 0px)) !important; bottom: auto !important; }
    .q-br { right: max(5%, env(safe-area-inset-right, 0px)) !important; left: auto !important; top: auto !important; bottom: max(5%, env(safe-area-inset-bottom, 0px)) !important; }

    .eye-text {
        top: 70% !important;
    }

    .step-card--dramatic {
        margin-top: auto;
        margin-bottom: 10dvh;
    }

    .step-card--headline {
        padding: 2.5rem 1.5rem;
    }

    #comparison-panel {
        flex-direction: column;
        bottom: 5%;
        gap: 8px;
        padding: 12px 16px;
    }

    #comp-arrow {
        transform: rotate(90deg);
    }
}

/* ─── Extra-small phones (iPhone SE, Galaxy S) ─── */
@media (max-width: 389px) {
    .step-card { padding: 16px 18px; }
    .step-card--dramatic { padding: 20px 16px !important; }
    .eye-text { max-width: 88vw; }
    .intro-text { max-width: 92vw; }
    .content-warning { max-width: 92vw; }
}

/* ─── Landscape phones — prevent video height overflow ─── */
@media (orientation: landscape) and (max-height: 500px) {
    #video-overlay,
    #video-overlay-2,
    #video-overlay-3,
    #video-overlay-4 {
        width: min(120px, 20vw) !important;
    }
    .q-bl, .q-br { bottom: 3% !important; }
    .q-tl, .q-tr { top: 3% !important; }
    #lin-focus .lin-vid { width: min(100px, 18vh) !important; }
    .wh-video-phone { width: min(150px, 25vh) !important; }
    .step-card--dramatic { max-width: 70vw !important; padding: 16px !important; }
    .step-card--headline { padding: 1.5rem 1rem !important; }
}