:root {
            --ai-ink: #14213d;
            --ai-blue: #2563eb;
            --ai-indigo: #4338ca;
            --ai-purple: #7c3aed;
            --ai-cyan: #06b6d4;
            --ai-green: #059669;
            --ai-gold: #d97706;
            --ai-red: #dc2626;
            --mission-sticky-top: 60px;
            --mission-scroll-offset: 188px;
        }

        .KantumruyPro { font-family: 'Kantumruy Pro', sans-serif; }

        /* Keep every readable label in this Khmer lesson visually consistent. */
        body,
        body * { font-family: 'Kantumruy Pro', sans-serif !important; }

        body.bg-white {
            background:
                radial-gradient(circle at top right, rgba(16, 163, 127, .13), transparent 28%),
                radial-gradient(circle at 0 18%, rgba(52, 211, 153, .10), transparent 28%),
                linear-gradient(180deg, #f7faf9 0%, #fff 44%, #f4f8f6 100%);
        }

        .ai-hero {
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(16, 163, 127, .30);
            border-radius: 25px;
            padding: 19px 16px 18px;
            margin-top: 6px;
            color: #fff;
            background:
                radial-gradient(circle at 93% 10%, rgba(16, 163, 127, .42), transparent 28%),
                radial-gradient(circle at 8% 110%, rgba(52, 211, 153, .28), transparent 32%),
                linear-gradient(135deg, #091714 0%, #0f2721 48%, #163d33 100%);
            box-shadow: 0 18px 42px rgba(10, 32, 26, .35);
        }

        .ai-hero::before,
        .ai-hero::after {
            content: "";
            position: absolute;
            width: 130px;
            height: 130px;
            border: 1px solid rgba(16, 163, 127, .24);
            border-radius: 50%;
            pointer-events: none;
        }

        .ai-hero::before { top: -68px; right: 48px; }
        .ai-hero::after { bottom: -86px; left: 28px; width: 190px; height: 190px; }

        .ai-hero > * { position: relative; z-index: 1; }

        .ai-pill,
        .duration-pill {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .02em;
        }

        .ai-pill {
            padding: 8px 13px;
            margin-bottom: 13px;
            color: #d1fae5;
            background: rgba(16, 163, 127, .20);
            border: 1px solid rgba(52, 211, 153, .38);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, .12);
            backdrop-filter: blur(12px);
        }

        .duration-pill {
            margin-top: 13px;
            padding: 7px 11px;
            color: #d1fae5;
            background: rgba(16, 163, 127, .24);
            border: 1px solid rgba(52, 211, 153, .36);
        }

        .ai-hero-title {
            margin: 0 0 9px;
            color: #fff;
            font-size: clamp(27px, 8vw, 36px);
            font-weight: 800;
            line-height: 1.35;
            text-shadow: 0 7px 24px rgba(6, 25, 20, .45);
        }

        .ai-author-row { color: rgba(209, 250, 229, .85) !important; }
        .ai-author-row a { color: #6ee7b7 !important; }
        .ai-hero .lead { color: rgba(240, 253, 248, .94); font-size: 17px; line-height: 1.9; }

        .ai-section-card,
        figure,
        .blog-card {
            border: 1px solid rgba(100, 116, 139, .14);
            background: rgba(255, 255, 255, .82);
            box-shadow: 0 14px 32px rgba(15, 23, 42, .07);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }

        .ai-section-card {
            border-radius: 22px;
            padding: 18px 16px;
            margin-top: 14px;
        }

        .lesson-highlight {
            position: relative;
            overflow: hidden;
            margin: 14px 0;
            padding: 16px;
            border: 1px solid rgba(99, 102, 241, .13);
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(239, 246, 255, .98), rgba(250, 245, 255, .96));
            box-shadow: 0 10px 24px rgba(99, 102, 241, .06);
        }

        .lesson-highlight::after {
            content: "";
            position: absolute;
            top: -62px;
            right: -40px;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(34, 211, 238, .17), transparent 66%);
            pointer-events: none;
        }

        .lesson-highlight > * { position: relative; z-index: 1; }

        .lesson-note,
        .lesson-summary-box,
        .beginner-box {
            position: relative;
            border-radius: 18px;
            padding: 17px;
            margin: 18px 0;
        }

        .lesson-note {
            border: 1px solid rgba(245, 158, 11, .28);
            background: linear-gradient(135deg, rgba(255, 247, 237, .98), rgba(255, 251, 235, .97));
            box-shadow: 0 10px 25px rgba(217, 119, 6, .08);
        }

        .lesson-note::before {
            content: "\26A0 \FE0F \20 \1785 \17C6 \178E \17B6 \17C6 \179F \17C6 \1781 \17B6 \1793 \17CB ";
            display: block;
            margin-bottom: 7px;
            color: var(--ai-gold);
            font-size: 12px;
            font-weight: 800;
        }

        .lesson-summary-box {
            border: 1px solid rgba(99, 102, 241, .18);
            background: linear-gradient(135deg, rgba(239, 246, 255, .96), rgba(250, 245, 255, .98));
            box-shadow: 0 12px 28px rgba(99, 102, 241, .08);
        }

        .lesson-summary-box::before {
            content: "\1F9E0 \20 \179F \1784 \17D2 \1781 \17C1 \1794 \1798 \17C1 \179A \17C0 \1793 ";
            display: block;
            margin-bottom: 8px;
            color: var(--ai-indigo);
            font-size: 12px;
            font-weight: 800;
        }

        .beginner-box {
            border: 1px solid rgba(37, 99, 235, .24);
            background: linear-gradient(135deg, rgba(239, 246, 255, .98), rgba(236, 254, 255, .97));
            box-shadow: 0 12px 28px rgba(37, 99, 235, .08);
        }

        .beginner-box::before {
            content: "\1F680 \20 \179F \1798 \17D2 \179A \17B6 \1794 \17CB \17A2 \17D2 \1793 \1780 \1785 \17B6 \1794 \17CB \1795 \17D2 \178F \17BE \1798 ";
            display: block;
            margin-bottom: 8px;
            color: var(--ai-blue);
            font-size: 12px;
            font-weight: 800;
        }

        #appCapsule p { font-size: 17px; line-height: 1.9; }
        #appCapsule li { font-size: 17px; line-height: 1.84; margin-bottom: 5px; }
        #appCapsule h2 { font-size: 23px; font-weight: 800; }

        #appCapsule h3 {
            position: relative;
            margin-top: 23px;
            margin-bottom: 10px;
            padding-left: 14px;
            color: var(--ai-ink);
            font-size: 20px;
            font-weight: 800;
            line-height: 1.55;
        }

        #appCapsule h3::before {
            content: "";
            position: absolute;
            top: .47em;
            left: 0;
            width: 6px;
            height: 24px;
            border-radius: 99px;
            background: linear-gradient(180deg, var(--ai-blue), var(--ai-purple));
        }

        #appCapsule h3:nth-of-type(4n+2)::before { background: linear-gradient(180deg, var(--ai-purple), #ec4899); }
        #appCapsule h3:nth-of-type(4n+3)::before { background: linear-gradient(180deg, var(--ai-green), #84cc16); }
        #appCapsule h3:nth-of-type(4n)::before { background: linear-gradient(180deg, var(--ai-gold), #ef4444); }

        figure { margin: 18px 0; padding: 14px; border-radius: 22px; }

        .lesson-media {
            padding: 8px;
            overflow: hidden;
        }

        .lesson-media img {
            display: block;
            width: 100%;
            height: auto;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 16px;
            box-shadow: 0 10px 24px rgba(15, 23, 42, .18);
        }

        .visual-panel {
            position: relative;
            overflow: hidden;
            min-height: 212px;
            border-radius: 17px;
            color: #fff;
        }

        .visual-panel::before,
        .visual-panel::after {
            content: "";
            position: absolute;
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 50%;
            pointer-events: none;
        }

        .visual-panel::before { width: 260px; height: 260px; top: -130px; right: -100px; }
        .visual-panel::after { width: 174px; height: 174px; bottom: -103px; left: -54px; }
        .visual-panel > * { position: relative; z-index: 1; }

        .visual-cover {
            display: grid;
            grid-template-columns: 1fr auto;
            align-items: center;
            gap: 12px;
            padding: 22px 18px;
            background:
                radial-gradient(circle at 92% 18%, rgba(103, 232, 249, .46), transparent 24%),
                linear-gradient(135deg, #17134b, #35298a 57%, #7e22ce);
        }

        .visual-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 8px;
            color: #bfefff;
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .1em;
        }

        .visual-cover h2 { margin: 0; color: #fff; font-size: 29px !important; line-height: 1.38; }
        .visual-cover p { margin: 9px 0 0; color: rgba(255, 255, 255, .84); font-size: 15px !important; line-height: 1.7 !important; }

        .visual-orbit {
            display: grid;
            place-items: center;
            width: 103px;
            height: 103px;
            border-radius: 50%;
            color: #fff;
            font-size: 47px;
            background: radial-gradient(circle at 35% 25%, rgba(255,255,255,.28), rgba(34,211,238,.20) 42%, rgba(67,56,202,.36) 70%);
            border: 1px solid rgba(255,255,255,.32);
            box-shadow: 0 0 0 13px rgba(255,255,255,.06), 0 15px 28px rgba(1,4,38,.34);
        }

        .visual-process {
            padding: 18px 14px;
            background:
                radial-gradient(circle at 14% 0%, rgba(56, 189, 248, .30), transparent 30%),
                linear-gradient(135deg, #0f2546, #0d4e71 57%, #0f766e);
        }

        .visual-label {
            margin: 0 0 13px;
            color: rgba(255,255,255,.83);
            font-size: 13px;
            font-weight: 800;
            text-align: center;
        }

        .process-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 7px;
        }

        .process-step {
            min-height: 115px;
            padding: 11px 6px;
            border: 1px solid rgba(255,255,255,.18);
            border-radius: 14px;
            color: #fff;
            text-align: center;
            background: rgba(255,255,255,.10);
            box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
        }

        .process-step ion-icon { display: block; margin: 0 auto 7px; color: #a5f3fc; font-size: 25px; }
        .process-step strong { display: block; font-size: 13px; line-height: 1.45; }
        .process-step small { display: block; margin-top: 4px; color: rgba(255,255,255,.70); font-size: 10px; line-height: 1.45; }

        .visual-guardrail {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 9px;
            align-items: stretch;
            padding: 18px 13px;
            background:
                radial-gradient(circle at 90% 0%, rgba(250, 204, 21, .24), transparent 27%),
                linear-gradient(135deg, #27340d, #14532d 53%, #065f46);
        }

        .guardrail-head { grid-column: 1 / -1; margin: 0 0 2px; color: #ecfccb; text-align: center; font-size: 13px; font-weight: 800; }
        .guardrail-step { padding: 11px 6px; border-radius: 14px; background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.16); text-align: center; }
        .guardrail-step ion-icon { display: block; margin: 0 auto 6px; color: #fef08a; font-size: 25px; }
        .guardrail-step strong { display: block; font-size: 13px; line-height: 1.45; }
        .guardrail-step small { display: block; margin-top: 4px; color: rgba(255,255,255,.74); font-size: 10px; line-height: 1.4; }

        .definition-grid,
        .ability-grid,
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 11px;
            margin: 14px 0 4px;
        }

        .definition-card,
        .ability-card,
        .comparison-card {
            padding: 14px;
            border: 1px solid rgba(100,116,139,.14);
            border-radius: 16px;
            background: linear-gradient(145deg, #fff, #f8fbff);
        }

        .definition-card ion-icon,
        .ability-card ion-icon,
        .comparison-card ion-icon {
            display: block;
            margin-bottom: 8px;
            font-size: 28px;
        }

        .definition-card strong,
        .ability-card strong,
        .comparison-card strong { display: block; margin-bottom: 4px; color: var(--ai-ink); font-size: 15px; }
        .definition-card span,
        .ability-card span,
        .comparison-card span { display: block; color: #475569; font-size: 13px; line-height: 1.65; }
        .definition-card:nth-child(1) ion-icon { color: var(--ai-purple); }
        .definition-card:nth-child(2) ion-icon { color: var(--ai-blue); }
        .definition-card:nth-child(3) ion-icon { color: var(--ai-cyan); }
        .definition-card:nth-child(4) ion-icon { color: var(--ai-green); }

        .ability-card.can { border-color: rgba(5,150,105,.18); background: linear-gradient(145deg, #f0fdf4, #f7fffb); }
        .ability-card.cannot { border-color: rgba(220,38,38,.16); background: linear-gradient(145deg, #fff7f7, #fff); }
        .ability-card.can ion-icon { color: var(--ai-green); }
        .ability-card.cannot ion-icon { color: var(--ai-red); }

        .comparison-card.program { border-color: rgba(37,99,235,.16); }
        .comparison-card.ai { border-color: rgba(124,58,237,.17); }
        .comparison-card.program ion-icon { color: var(--ai-blue); }
        .comparison-card.ai ion-icon { color: var(--ai-purple); }

        .example-list { display: grid; gap: 9px; margin: 14px 0; }
        .example-item { display: flex; gap: 11px; align-items: flex-start; padding: 12px; border-radius: 15px; background: #f8fafc; border: 1px solid rgba(100,116,139,.12); }
        .example-icon { flex: 0 0 auto; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; color: #fff; background: linear-gradient(135deg, var(--ai-blue), var(--ai-purple)); }
        .example-item:nth-child(2) .example-icon { background: linear-gradient(135deg, #0891b2, #2563eb); }
        .example-item:nth-child(3) .example-icon { background: linear-gradient(135deg, #059669, #65a30d); }
        .example-item:nth-child(4) .example-icon { background: linear-gradient(135deg, #d97706, #ea580c); }
        .example-item strong { display: block; color: var(--ai-ink); font-size: 15px; }
        .example-item span { display: block; margin-top: 2px; color: #475569; font-size: 13px; line-height: 1.6; }

        .prompt-box {
            position: relative;
            overflow: hidden;
            margin-top: 13px;
            padding: 16px;
            border: 1px solid rgba(34, 211, 238, .24);
            border-radius: 18px;
            color: #e0f2fe;
            background: linear-gradient(135deg, #102a43, #173b64 58%, #1e3a8a);
        }

        .prompt-box::after { content: ""; position: absolute; top: -65px; right: -45px; width: 160px; height: 160px; border-radius: 50%; background: rgba(34,211,238,.14); }
        .prompt-box > * { position: relative; z-index: 1; }
        .prompt-label { display: flex; align-items: center; gap: 7px; color: #67e8f9; font-size: 12px; font-weight: 800; }
        .prompt-text { margin: 9px 0 12px; color: #f8fafc; font-size: 15px; line-height: 1.85; }
        .copy-btn,
        .reveal-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            min-height: 38px;
            padding: 8px 12px;
            border: 0;
            border-radius: 11px;
            color: #102a43;
            font-family: 'Kantumruy Pro', sans-serif;
            font-size: 13px;
            font-weight: 800;
            background: #a5f3fc;
            cursor: pointer;
        }

        .copy-btn:focus-visible,
        .reveal-btn:focus-visible { outline: 3px solid #fef08a; outline-offset: 2px; }
        .copy-feedback { display: inline-block; margin-left: 8px; color: #a5f3fc; font-size: 12px; font-weight: 700; }

        .check-card { margin-top: 15px; padding: 16px; border: 1px solid rgba(124,58,237,.18); border-radius: 18px; background: linear-gradient(135deg, #faf5ff, #f5f3ff); }
        .quiz-stack { display: grid; gap: 16px; margin-top: 15px; }
        .quiz-card { padding: 18px; border: 1px solid rgba(124,58,237,.18); border-radius: 18px; background: linear-gradient(135deg, #faf5ff, #f5f3ff); box-shadow: 0 10px 24px rgba(124,58,237,.06); }
        .quiz-card .check-answer { display: none; }
        .quiz-card.is-answered .check-answer { display: block; }
        .quiz-count { color: var(--ai-purple); font-weight: 800; margin-bottom: 8px; font-size: 13px; }
        .check-kicker { display: flex; align-items: center; gap: 7px; color: var(--ai-purple); font-size: 12px; font-weight: 800; }
        .check-question { margin: 8px 0 11px; color: var(--ai-ink); font-size: 17px; font-weight: 800; line-height: 1.7; }
        .answer-options { display: grid; gap: 7px; margin-bottom: 13px; }
        .answer-option { padding: 10px 11px; border: 1px solid rgba(124,58,237,.13); border-radius: 12px; color: #334155; background: rgba(255,255,255,.68); font-size: 14px; line-height: 1.6; }
        .reveal-btn { color: #fff; background: linear-gradient(135deg, var(--ai-purple), var(--ai-blue)); }
        .check-answer { display: none; margin-top: 11px; padding: 11px; border-radius: 12px; color: #166534; background: #f0fdf4; border: 1px solid rgba(22,163,74,.18); font-size: 14px; line-height: 1.7; }
        .check-answer.is-visible { display: block; }

        .source-box {
            padding: 16px 18px;
            border-left: 4px solid #a96cff;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(245, 243, 255, .96), rgba(239, 246, 255, .95));
            border-top: 1px solid rgba(169, 108, 255, .15);
            border-right: 1px solid rgba(169, 108, 255, .15);
            border-bottom: 1px solid rgba(169, 108, 255, .15);
            color: #334155;
            font-size: 14px;
            line-height: 1.7;
            margin: 14px 0;
        }
        .source-box b { color: var(--ai-purple); }
        .source-box a { color: var(--ai-blue); text-decoration: underline; }

        .flow-list { counter-reset: step; display: grid; gap: 12px; margin: 14px 0; }
        .flow-list div {
            position: relative;
            padding: 14px 15px 14px 58px;
            border-radius: 15px;
            background: linear-gradient(135deg, rgba(239, 246, 255, .96), rgba(245, 243, 255, .98));
            border: 1px solid rgba(99, 102, 241, .18);
            box-shadow: 0 6px 16px rgba(99, 102, 241, .05);
            color: #334155;
            font-size: 15px;
            line-height: 1.7;
        }
        .flow-list div b, .flow-list div strong { color: var(--ai-ink); }
        .flow-list div:before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            left: 15px;
            top: 12px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: grid;
            place-items: center;
            background: linear-gradient(135deg, var(--ai-blue), var(--ai-purple));
            color: #fff;
            font-weight: 800;
            font-size: 13px;
            box-shadow: 0 4px 12px rgba(99, 102, 241, .25);
        }

        .file-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(205px, 1fr)); gap: 14px; margin: 14px 0; }
        .file-card {
            padding: 18px;
            border: 1px solid rgba(14, 165, 233, .2);
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(240, 249, 255, .98), rgba(238, 242, 255, .96));
            box-shadow: 0 8px 20px rgba(14, 165, 233, .06);
        }
        .file-card ion-icon { font-size: 30px; color: var(--ai-cyan); }
        .file-card strong { display: block; color: var(--ai-ink); font-size: 15px; margin-top: 4px; }
        .file-card span { display: block; margin-top: 7px; color: #475569; font-size: 13px; line-height: 1.6; }

        .route-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin: 14px 0; }
        .route-card {
            padding: 18px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(238, 242, 255, .98), rgba(245, 243, 255, .96));
            border: 1px solid rgba(99, 102, 241, .2);
            box-shadow: 0 8px 20px rgba(99, 102, 241, .06);
        }
        .route-card ion-icon { font-size: 30px; color: var(--ai-indigo); }
        .route-card strong { display: block; color: var(--ai-ink); font-size: 15px; margin-top: 4px; }
        .route-card span { display: block; margin-top: 7px; color: #475569; font-size: 13px; line-height: 1.6; }

        .decision-table { width: 100%; border-collapse: collapse; margin: 14px 0; border-radius: 12px; overflow: hidden; }
        .decision-table th, .decision-table td { padding: 12px; border: 1px solid rgba(99, 102, 241, .15); text-align: left; font-size: 14px; }
        .decision-table th { background: rgba(99, 102, 241, .1); color: var(--ai-indigo); font-weight: 800; }
        .decision-table td { background: rgba(255, 255, 255, .8); color: #334155; }

        /* Mission mode: turn the lesson into a guided, visible journey. */
        html,
        body,
        #appCapsule {
            scroll-behavior: smooth;
        }

        .hero-mission-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, .15);
        }

        .hero-mission-info { display: flex; align-items: center; gap: 9px; min-width: 0; }
        .hero-mission-info > ion-icon { flex: 0 0 auto; color: #34d399; font-size: 24px; filter: drop-shadow(0 0 10px rgba(52, 211, 153, .75)); }
        .hero-mission-copy { display: grid; gap: 1px; }
        .hero-mission-copy b { color: #fff; font-size: 13px; line-height: 1.3; }
        .hero-mission-copy span { color: rgba(209, 250, 229, .78); font-size: 11px; line-height: 1.35; }
        .hero-xp {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 2px;
            color: #fde047;
            font-size: 11px;
            font-weight: 800;
        }

        .mission-start {
            display: inline-flex;
            flex: 0 0 auto;
            align-items: center;
            justify-content: center;
            gap: 6px;
            min-height: 38px;
            padding: 8px 14px;
            border: 1px solid rgba(255, 255, 255, .32);
            border-radius: 12px;
            color: #042f24;
            font-size: 12px;
            font-weight: 800;
            background: linear-gradient(135deg, #a7f3d0, #10a37f 60%, #059669);
            box-shadow: 0 8px 22px rgba(16, 163, 127, .30);
            transition: transform .18s ease, box-shadow .18s ease;
        }

        .mission-start:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 26px rgba(16, 163, 127, .42);
        }

        .mission-start ion-icon { font-size: 17px; }
        .mission-start:focus-visible { outline: 3px solid #fde047; outline-offset: 3px; }

        .mission-console-shell { margin: 12px 16px 17px; }

        .mission-console {
            position: relative;
            z-index: 12;
            overflow: hidden;
            box-sizing: border-box;
            width: 100%;
            margin: 0;
            padding: 13px;
            border: 1px solid rgba(16, 163, 127, .28);
            border-radius: 20px;
            color: #f8fbff;
            background:
                radial-gradient(circle at 91% 8%, rgba(52, 211, 153, .28), transparent 35%),
                linear-gradient(135deg, rgba(10, 24, 20, .72), rgba(15, 36, 30, .68) 58%, rgba(20, 52, 44, .72));
            box-shadow: 0 18px 38px rgba(4, 18, 14, .35), inset 0 1px rgba(255, 255, 255, .20);
            backdrop-filter: blur(22px) saturate(155%);
            -webkit-backdrop-filter: blur(22px) saturate(155%);
        }

        /* JavaScript pins this reliably even when the app uses its own scroll container. */
        .mission-console.is-pinned {
            position: fixed;
            top: var(--mission-sticky-top);
            left: var(--mission-fixed-left, 16px);
            width: var(--mission-fixed-width, calc(100vw - 32px));
            margin: 0;
            z-index: 999;
        }

        .mission-console::after {
            content: "";
            position: absolute;
            top: -70px;
            right: -45px;
            width: 168px;
            height: 168px;
            border: 1px solid rgba(16, 163, 127, .18);
            border-radius: 50%;
            pointer-events: none;
        }

        .mission-console::before {
            content: "";
            position: absolute;
            inset: 1px;
            border-radius: inherit;
            background: linear-gradient(120deg, rgba(255, 255, 255, .16), transparent 32%, rgba(52, 211, 153, .10) 72%, rgba(255, 255, 255, .08));
            pointer-events: none;
        }

        .mission-console > * { position: relative; z-index: 1; }
        [data-mission-checkpoint] { scroll-margin-top: var(--mission-scroll-offset); }
        .mission-console-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
        .mission-label { display: flex; align-items: center; gap: 7px; color: #a7f3d0; font-size: 12px; font-weight: 800; letter-spacing: .06em; }
        .mission-label ion-icon { color: #34d399; font-size: 17px; }
        .mission-status { color: rgba(209, 250, 229, .80); font-size: 11px; font-weight: 700; text-align: right; }
        .mission-status b { color: #fde047; }
        .mission-progress-track { width: 100%; height: 7px; margin: 10px 0 11px; overflow: hidden; border-radius: 999px; background: rgba(255, 255, 255, .13); box-shadow: inset 0 1px 3px rgba(0, 0, 0, .26); }
        .mission-progress-fill { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #34d399, #10a37f 55%, #6ee7b7); box-shadow: 0 0 15px rgba(52, 211, 153, .74); transition: width .48s cubic-bezier(.2, .9, .2, 1); }
        .mission-stages { display: flex; gap: 7px; overflow-x: auto; padding-bottom: 2px; scrollbar-width: none; }
        .mission-stages::-webkit-scrollbar { display: none; }

        .mission-stage {
            display: inline-flex;
            flex: 0 0 auto;
            align-items: center;
            gap: 6px;
            min-height: 30px;
            padding: 6px 9px;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 999px;
            color: rgba(209, 250, 229, .82);
            font-family: 'Kantumruy Pro', sans-serif;
            font-size: 11px;
            font-weight: 700;
            white-space: nowrap;
            background: rgba(255, 255, 255, .06);
            cursor: pointer;
            transition: border-color .22s ease, color .22s ease, background .22s ease, transform .22s ease;
        }

        .mission-stage:hover { transform: translateY(-1px); border-color: rgba(52, 211, 153, .48); color: #fff; }
        .mission-stage:focus-visible { outline: 3px solid #fde047; outline-offset: 2px; }
        .mission-stage .stage-number { display: grid; place-items: center; width: 16px; height: 16px; border-radius: 50%; color: #a7f3d0; font-size: 9px; background: rgba(16, 163, 127, .24); }
        .mission-stage.is-visited { border-color: rgba(52, 211, 153, .36); color: #fff; background: rgba(16, 163, 127, .16); }
        .mission-stage.is-visited .stage-number { color: #fff; background: #059669; }
        .mission-stage.is-active { border-color: rgba(52, 211, 153, .60); color: #fff; background: rgba(16, 163, 127, .28); box-shadow: 0 0 15px rgba(16, 163, 127, .26); }

        .ai-lab {
            position: relative;
            overflow: hidden;
            margin-top: 14px;
            padding: 18px 16px;
            border: 1px solid rgba(16, 163, 127, .28);
            border-radius: 22px;
            color: #fff;
            background:
                radial-gradient(circle at 94% 8%, rgba(52, 211, 153, .30), transparent 27%),
                radial-gradient(circle at 9% 96%, rgba(16, 163, 127, .22), transparent 30%),
                linear-gradient(135deg, #091714, #0f2721 54%, #184237);
            box-shadow: 0 18px 38px rgba(10, 32, 26, .30);
        }

        .ai-lab::before {
            content: "";
            position: absolute;
            top: -82px;
            left: -55px;
            width: 190px;
            height: 190px;
            border: 1px solid rgba(16, 163, 127, .16);
            border-radius: 50%;
            pointer-events: none;
        }

        .ai-lab > * { position: relative; z-index: 1; }
        .lab-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
        .lab-kicker { display: flex; align-items: center; gap: 6px; color: #6ee7b7; font-size: 11px; font-weight: 800; letter-spacing: .10em; }
        .lab-kicker ion-icon { font-size: 16px; }
        .lab-title { margin: 5px 0 0; color: #fff; font-size: 21px; font-weight: 800; line-height: 1.45; }
        .lab-status { display: inline-flex; align-items: center; gap: 5px; flex: 0 0 auto; margin-top: 2px; padding: 6px 8px; border: 1px solid rgba(52, 211, 153, .30); border-radius: 999px; color: #a7f3d0; font-size: 10px; font-weight: 800; background: rgba(6, 78, 59, .42); }
        .lab-status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #34d399; box-shadow: 0 0 10px #34d399; }
        .lab-description { margin: 10px 0 14px; color: rgba(209, 250, 229, .85); font-size: 14px !important; line-height: 1.7 !important; }
        .lab-inputs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }

        .lab-input {
            position: relative;
            display: grid;
            grid-template-columns: auto minmax(0, 1fr);
            align-items: center;
            gap: 8px;
            min-height: 61px;
            padding: 9px;
            border: 1px solid rgba(52, 211, 153, .20);
            border-radius: 14px;
            color: #f8fbff;
            font-family: 'Kantumruy Pro', sans-serif;
            text-align: left;
            background: rgba(255, 255, 255, .075);
            cursor: pointer;
            transition: transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
        }

        .lab-input:hover,
        .lab-input.is-selected { transform: translateY(-2px); border-color: rgba(52, 211, 153, .64); background: linear-gradient(135deg, rgba(16, 163, 127, .24), rgba(5, 150, 105, .26)); box-shadow: 0 10px 21px rgba(16, 163, 127, .22); }
        .lab-input:focus-visible { outline: 3px solid #fde047; outline-offset: 2px; }
        .lab-input ion-icon { color: #6ee7b7; font-size: 23px; }
        .lab-input strong { display: block; font-size: 13px; line-height: 1.3; }
        .lab-input small { display: block; margin-top: 1px; color: rgba(209, 250, 229, .70); font-size: 10px; line-height: 1.35; }

        .lab-flow { display: grid; grid-template-columns: minmax(0, 1fr) 17px minmax(0, 1fr) 17px minmax(0, 1fr); align-items: stretch; gap: 4px; margin-top: 15px; }
        .lab-node,
        .lab-core,
        .lab-brain { display: grid; place-items: center; align-content: center; min-height: 116px; padding: 10px 6px; border: 1px solid rgba(255, 255, 255, .15); border-radius: 15px; text-align: center; background: rgba(255, 255, 255, .075); }
        .lab-node ion-icon { margin-bottom: 6px; color: #34d399; font-size: 25px; }
        .lab-node strong,
        .lab-core strong,
        .lab-brain strong { display: block; color: #fff; font-size: 12px; line-height: 1.4; }
        .lab-node small,
        .lab-core small,
        .lab-brain small { display: block; margin-top: 3px; color: rgba(209, 250, 229, .70); font-size: 9px; line-height: 1.35; }
        .lab-core,
        .lab-brain { position: relative; overflow: hidden; border-color: rgba(52, 211, 153, .42); background: radial-gradient(circle at 50% 18%, rgba(52, 211, 153, .31), rgba(16, 163, 127, .12) 45%, rgba(255, 255, 255, .05) 71%); }
        .lab-core ion-icon,
        .lab-brain ion-icon { margin-bottom: 6px; color: #a7f3d0; font-size: 31px; filter: drop-shadow(0 0 9px rgba(52, 211, 153, .72)); }
        .lab-core::after,
        .lab-brain::after { content: ""; position: absolute; width: 74px; height: 74px; border: 1px solid rgba(52, 211, 153, .38); border-radius: 50%; pointer-events: none; }
        .lab-arrow { display: grid; place-items: center; color: #34d399; font-size: 20px; text-shadow: 0 0 12px rgba(52, 211, 153, .70); }
        .lab-result { margin-top: 11px; padding: 10px 12px; border: 1px solid rgba(52, 211, 153, .25); border-radius: 13px; color: #d1fae5; font-size: 13px; line-height: 1.65; background: rgba(6, 78, 59, .32); }
        .lab-result b { color: #86efac; }

        @keyframes labPulse { 50% { transform: scale(1.06); filter: brightness(1.25) drop-shadow(0 0 14px rgba(52, 211, 153, .80)); } }
        @keyframes labFlow { 50% { opacity: .34; transform: translateX(3px); } }
        .ai-lab.is-processing .lab-core ion-icon,
        .ai-lab.is-processing .lab-brain ion-icon { animation: labPulse .66s ease-in-out 2; }
        .ai-lab.is-processing .lab-arrow { animation: labFlow .48s ease-in-out 2; }

        .answer-option {
            width: 100%;
            font-family: 'Kantumruy Pro', sans-serif;
            text-align: left;
            cursor: pointer;
            transition: transform .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
        }

        .answer-option:hover { transform: translateX(2px); border-color: rgba(16, 163, 127, .46); box-shadow: 0 6px 15px rgba(16, 163, 127, .12); }
        .answer-option:focus-visible { outline: 3px solid #fde047; outline-offset: 2px; }
        .answer-option.is-correct { color: #14532d; border-color: rgba(22, 163, 74, .52); background: #ecfdf5; }
        .answer-option.is-incorrect { color: #991b1b; border-color: rgba(239, 68, 68, .45); background: #fff1f2; }
        .check-answer.is-incorrect { color: #991b1b; border-color: rgba(239, 68, 68, .28); background: #fff1f2; }

        .mission-complete {
            position: relative;
            overflow: hidden;
            margin: 18px 0 2px;
            padding: 20px 17px;
            border: 1px solid rgba(52, 211, 153, .28);
            border-radius: 22px;
            color: #eaf7ff;
            background:
                radial-gradient(circle at 91% 13%, rgba(52, 211, 153, .34), transparent 26%),
                radial-gradient(circle at 12% 92%, rgba(16, 163, 127, .22), transparent 29%),
                linear-gradient(135deg, #091714, #122c26 53%, #1b453b);
            box-shadow: 0 18px 40px rgba(8, 28, 23, .28);
            transition: border-color .35s ease, box-shadow .35s ease, transform .35s ease;
        }

        .mission-complete::after { content: ""; position: absolute; top: -88px; right: -54px; width: 198px; height: 198px; border: 1px solid rgba(52, 211, 153, .16); border-radius: 50%; pointer-events: none; }
        .mission-complete > * { position: relative; z-index: 1; }
        .completion-top { display: flex; align-items: flex-start; gap: 12px; }
        .completion-orbit { display: grid; place-items: center; flex: 0 0 auto; width: 47px; height: 47px; border: 1px solid rgba(255, 255, 255, .27); border-radius: 50%; color: #fde047; font-size: 25px; background: radial-gradient(circle at 36% 26%, rgba(255, 255, 255, .30), rgba(52, 211, 153, .34) 50%, rgba(4, 47, 36, .65)); box-shadow: 0 0 0 7px rgba(255, 255, 255, .05), 0 0 27px rgba(52, 211, 153, .30); }
        .completion-kicker { color: #a7f3d0; font-size: 11px; font-weight: 800; letter-spacing: .10em; }
        .mission-complete h2 { margin: 3px 0 0; color: #fff; font-size: 22px !important; font-weight: 800; line-height: 1.45; }
        .mission-complete p { margin: 10px 0 14px; color: rgba(209, 250, 229, .82); font-size: 14px !important; line-height: 1.72 !important; }
        .completion-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
        .completion-badge { display: inline-flex; align-items: center; gap: 6px; min-width: 0; color: #fde047; font-size: 11px; font-weight: 800; }
        .completion-badge ion-icon { color: #6ee7b7; font-size: 17px; }
        .completion-cta { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 39px; padding: 8px 14px; border: 1px solid rgba(255, 255, 255, .28); border-radius: 12px; color: #042f24; font-size: 12px; font-weight: 800; background: linear-gradient(135deg, #a7f3d0, #34d399); box-shadow: 0 8px 19px rgba(16, 163, 127, .24); }
        .completion-cta ion-icon { font-size: 17px; }
        .mission-complete.is-unlocked { border-color: rgba(253, 224, 71, .54); box-shadow: 0 0 0 1px rgba(253, 224, 71, .12), 0 20px 48px rgba(6, 78, 59, .34); transform: translateY(-2px); }
        .mission-complete.is-unlocked .completion-orbit { color: #fff; background: radial-gradient(circle at 36% 26%, rgba(255, 255, 255, .34), rgba(250, 204, 21, .43) 51%, rgba(5, 150, 105, .68)); }

        body.dark-mode.bg-white {
            background:
                radial-gradient(circle at 95% 4%, rgba(16, 163, 127, .18), transparent 28%),
                radial-gradient(circle at 0 30%, rgba(52, 211, 153, .14), transparent 30%),
                linear-gradient(180deg, #07120f 0%, #0a1714 50%, #081310 100%);
        }

        body.dark-mode .mission-console {
            border-color: rgba(16, 163, 127, .38);
            background:
                radial-gradient(circle at 91% 8%, rgba(52, 211, 153, .30), transparent 35%),
                linear-gradient(135deg, rgba(8, 20, 17, .64), rgba(12, 30, 25, .60) 58%, rgba(16, 42, 35, .65));
            box-shadow: 0 18px 42px rgba(0, 0, 0, .45), inset 0 1px rgba(255, 255, 255, .18);
        }
        body.dark-mode .ai-lab { border-color: rgba(16, 163, 127, .32); box-shadow: 0 20px 43px rgba(0, 0, 0, .45); }
        body.dark-mode .lab-input { border-color: rgba(52, 211, 153, .22); background: rgba(255, 255, 255, .065); }
        body.dark-mode .lab-input.is-selected { background: linear-gradient(135deg, rgba(16, 163, 127, .30), rgba(5, 150, 105, .32)); }
        body.dark-mode .answer-option.is-correct { color: #bbf7d0; background: rgba(6, 78, 59, .62); }
        body.dark-mode .answer-option.is-incorrect,
        body.dark-mode .check-answer.is-incorrect { color: #fecdd3; background: rgba(136, 19, 55, .56); }
        body.dark-mode .mission-complete { border-color: rgba(52, 211, 153, .35); box-shadow: 0 20px 45px rgba(0, 0, 0, .45); }

        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            .mission-progress-fill,
            .mission-stage,
            .lab-input,
            .answer-option,
            .mission-complete { transition: none; }
            .ai-lab.is-processing .lab-core ion-icon,
            .ai-lab.is-processing .lab-brain ion-icon,
            .ai-lab.is-processing .lab-arrow { animation: none; }
        }

        .next-card-title {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
            padding: 8px 14px;
            border: 1px solid rgba(99,102,241,.11);
            border-radius: 999px;
            color: var(--ai-indigo);
            background: linear-gradient(135deg, rgba(59,130,246,.10), rgba(168,85,247,.10));
            font-weight: 800;
        }

        .blog-card { overflow: hidden; border-radius: 18px; transition: transform .25s ease, box-shadow .25s ease; }
        .blog-card:hover { transform: translateY(-3px); box-shadow: 0 18px 30px rgba(15,23,42,.12); }
        .blog-card > img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
        .lesson-next-visual { display: grid; place-items: center; min-height: 112px; color: #fff; font-size: 42px; background: linear-gradient(135deg, #15803d, #0d9488); }
        .lesson-next-visual.lesson-3 { background: linear-gradient(135deg, #1d4ed8, #7c3aed); }
        .blog-card .text { padding: 12px 12px 14px; }
        .blog-card .title { margin: 0; color: var(--ai-ink); font-size: 16px; line-height: 1.7; }

        /* Previous / next lesson cards: let long Khmer titles grow naturally. */
        .lesson-navigation .row { align-items: stretch; }
        .lesson-navigation .col-6 { display: flex; }
        .lesson-navigation .col-6 > a {
            display: flex;
            width: 100%;
            height: 100%;
        }
        .lesson-navigation .blog-card {
            display: flex;
            flex-direction: column;
            width: 100%;
            height: 100% !important;
            min-height: 0 !important;
        }
        .lesson-navigation .blog-card > img {
            display: block;
            flex: 0 0 auto;
            width: 100%;
            max-width: 100%;
            height: auto;
            aspect-ratio: auto;
            object-fit: contain;
        }
        .lesson-navigation .blog-card .text {
            position: static !important;
            flex: 1 0 auto;
            height: auto !important;
            min-height: 0 !important;
            max-height: none !important;
            overflow: visible !important;
        }
        .lesson-navigation .blog-card .title {
            display: block !important;
            height: auto !important;
            min-height: 0 !important;
            max-height: none !important;
            overflow: visible !important;
            white-space: normal !important;
            overflow-wrap: anywhere;
            text-overflow: clip !important;
            -webkit-line-clamp: unset !important;
            line-clamp: unset !important;
            line-height: 1.65;
            min-height: calc(1.65em * 3) !important;
        }

        /* Dark mode: គ្រប់កាត និងផ្ទៃក្នុងមេរៀនត្រូវនៅជាស្រមោលងងឹត */
        body.dark-mode .ai-section-card,
        body.dark-mode figure,
        body.dark-mode .blog-card {
            background: linear-gradient(145deg, rgba(15, 23, 42, .96), rgba(31, 20, 62, .94));
            border-color: rgba(139, 92, 246, .22);
            box-shadow: inset 0 1px rgba(255, 255, 255, .05), 0 16px 34px rgba(0, 0, 0, .28);
        }

        body.dark-mode .lesson-media { background: linear-gradient(145deg, #0b1227, #1b1240); }
        body.dark-mode .lesson-media img { box-shadow: 0 12px 28px rgba(0, 0, 0, .45); }

        body.dark-mode #appCapsule p,
        body.dark-mode #appCapsule li,
        body.dark-mode .definition-card span,
        body.dark-mode .ability-card span,
        body.dark-mode .comparison-card span,
        body.dark-mode .example-item span,
        body.dark-mode .answer-option {
            color: #d8e3f5;
        }

        body.dark-mode #appCapsule h2,
        body.dark-mode #appCapsule h3,
        body.dark-mode .definition-card strong,
        body.dark-mode .ability-card strong,
        body.dark-mode .comparison-card strong,
        body.dark-mode .example-item strong,
        body.dark-mode .blog-card .title,
        body.dark-mode .check-question {
            color: #f8fbff;
        }

        body.dark-mode .lesson-highlight {
            background: linear-gradient(135deg, rgba(24, 47, 86, .94), rgba(47, 25, 81, .92));
            border-color: rgba(103, 232, 249, .16);
            box-shadow: 0 10px 24px rgba(0, 0, 0, .20);
        }

        body.dark-mode .lesson-note {
            color: #fde7b0;
            background: linear-gradient(135deg, rgba(91, 49, 8, .68), rgba(102, 36, 10, .60));
            border-color: rgba(251, 191, 36, .25);
        }

        body.dark-mode .lesson-summary-box {
            background: linear-gradient(135deg, rgba(30, 41, 92, .90), rgba(55, 28, 96, .84));
            border-color: rgba(165, 180, 252, .20);
        }

        body.dark-mode .beginner-box {
            background: linear-gradient(135deg, rgba(8, 47, 73, .88), rgba(30, 41, 90, .82));
            border-color: rgba(103, 232, 249, .20);
        }

        body.dark-mode .definition-card,
        body.dark-mode .comparison-card,
        body.dark-mode .example-item {
            background: linear-gradient(145deg, rgba(30, 41, 59, .92), rgba(25, 25, 62, .88));
            border-color: rgba(148, 163, 184, .16);
        }

        body.dark-mode .ability-card.can {
            background: linear-gradient(145deg, rgba(6, 78, 59, .78), rgba(15, 73, 55, .70));
            border-color: rgba(74, 222, 128, .20);
        }

        body.dark-mode .ability-card.cannot {
            background: linear-gradient(145deg, rgba(93, 25, 36, .76), rgba(67, 20, 48, .70));
            border-color: rgba(251, 113, 133, .20);
        }

        body.dark-mode .check-card {
            background: linear-gradient(135deg, rgba(47, 25, 81, .90), rgba(30, 41, 90, .88));
            border-color: rgba(196, 181, 253, .22);
        }

        body.dark-mode .quiz-card {
            background: linear-gradient(135deg, rgba(47, 25, 81, .90), rgba(30, 41, 90, .88));
            border-color: rgba(196, 181, 253, .22);
            box-shadow: inset 0 1px rgba(255, 255, 255, .05), 0 16px 34px rgba(0, 0, 0, .28);
        }

        body.dark-mode .quiz-count {
            color: #69e7ff;
        }

        body.dark-mode .answer-option {
            background: rgba(15, 23, 42, .70);
            border-color: rgba(196, 181, 253, .18);
        }

        body.dark-mode .check-answer {
            color: #bbf7d0;
            background: rgba(6, 78, 59, .72);
            border-color: rgba(74, 222, 128, .22);
        }

        body.dark-mode .next-card-title {
            color: #c4b5fd;
            background: linear-gradient(135deg, rgba(59, 130, 246, .17), rgba(168, 85, 247, .18));
            border-color: rgba(196, 181, 253, .18);
        }

        body.dark-mode .source-box {
            background: rgba(126, 68, 255, .14);
            border-color: rgba(169, 108, 255, .25);
            color: #e0f2fe;
        }
        body.dark-mode .source-box b { color: #d8b4fe; }
        body.dark-mode .source-box a { color: #7dd3fc; }

        body.dark-mode .flow-list div {
            background: linear-gradient(135deg, rgba(15, 32, 79, .85), rgba(35, 18, 75, .80));
            border-color: rgba(112, 224, 255, .25);
            color: #e0f2fe;
            box-shadow: inset 0 1px rgba(255, 255, 255, .08);
        }
        body.dark-mode .flow-list div b,
        body.dark-mode .flow-list div strong { color: #fff; }

        body.dark-mode .file-card {
            background: linear-gradient(145deg, rgba(18, 39, 91, .85), rgba(56, 18, 91, .62));
            border-color: rgba(89, 222, 255, .25);
        }
        body.dark-mode .file-card ion-icon { color: #70e9ff; }
        body.dark-mode .file-card strong { color: #fff; }
        body.dark-mode .file-card span { color: rgba(224, 242, 254, .82); }

        body.dark-mode .route-card {
            background: linear-gradient(145deg, rgba(24, 40, 96, .85), rgba(57, 20, 92, .62));
            border-color: rgba(94, 224, 255, .24);
        }
        body.dark-mode .route-card ion-icon { color: #66e7ff; }
        body.dark-mode .route-card strong { color: #fff; }
        body.dark-mode .route-card span { color: rgba(224, 242, 254, .86); }

        body.dark-mode .decision-table th, body.dark-mode .decision-table td { border-color: rgba(99, 220, 255, .2); }
        body.dark-mode .decision-table th { background: rgba(96, 61, 196, .35); color: #7cecff; }
        body.dark-mode .decision-table td { background: rgba(15, 23, 42, .6); color: #d8e3f5; }

        @media (max-width: 390px) {
            .hero-mission-row { align-items: stretch; flex-direction: column; }
            .mission-start { width: 100%; }
            .lab-head { align-items: flex-start; flex-direction: column; }
            .lab-flow { grid-template-columns: minmax(0, 1fr) 13px minmax(0, 1fr) 13px minmax(0, 1fr); gap: 2px; }
            .lab-node,
            .lab-core,
            .lab-brain { min-height: 105px; padding: 8px 4px; }
            .lab-node strong,
            .lab-core strong,
            .lab-brain strong { font-size: 11px; }
            .lab-node small,
            .lab-core small,
            .lab-brain small { font-size: 8px; }
            .lab-arrow { font-size: 16px; }
            .completion-actions { align-items: stretch; flex-direction: column; }
            .completion-cta { width: 100%; }
            .visual-cover { grid-template-columns: 1fr; }
            .visual-orbit { width: 83px; height: 83px; font-size: 38px; }
            .definition-grid,
            .ability-grid,
            .comparison-grid { grid-template-columns: 1fr; }
            .process-row { gap: 5px; }
            .process-step { min-height: 108px; padding: 9px 4px; }
            .process-step strong { font-size: 11px; }
            .process-step small { font-size: 9px; }
        }