:root {
            --oxford-dark: #080810;
            --oxford-card: #0f1624;
            --oxford-blue: #002147;
            --oxford-stroke: #263548;
            --gold: #ccad6b;
            --gold-light: #f5e6c8;
            --gold-dim: rgba(204, 173, 107, 0.12);
            --ivory: #ebe6d9;
            --glass: rgba(255, 255, 255, 0.025);
            --glass-border: rgba(255, 255, 255, 0.06);
            --serif: "Cormorant Garamond", "Times New Roman", serif;
            --sans: "DM Sans", -apple-system, BlinkMacSystemFont, sans-serif;
            --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

        html {
            scroll-behavior: smooth;
            overflow-x: clip;
            max-width: 100%;
        }

        body {
            font-family: var(--sans);
            background: var(--oxford-dark);
            color: var(--ivory);
            line-height: 1.6;
            overflow-x: clip;
            max-width: 100%;
            overscroll-behavior-x: none;
        }

        /* ── Ambient tech canvas ── */
        .canvas-bg {
            position: fixed;
            inset: 0;
            z-index: -3;
            background:
                radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0, 33, 71, 0.55) 0%, transparent 55%),
                radial-gradient(ellipse 40% 30% at 90% 20%, rgba(204, 173, 107, 0.04) 0%, transparent 50%),
                var(--oxford-dark);
        }

        .grid-overlay {
            position: fixed;
            inset: 0;
            z-index: -2;
            opacity: 0.35;
            background-image:
                linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
            background-size: 64px 64px;
            mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 20%, transparent 75%);
        }

        .gold-beam {
            position: fixed;
            top: -30vh;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: 60vh;
            background: linear-gradient(180deg, transparent, var(--gold), transparent);
            opacity: 0.15;
            z-index: -1;
            animation: beamPulse 6s ease-in-out infinite;
        }

        @keyframes beamPulse {
            0%, 100% { opacity: 0.08; }
            50% { opacity: 0.22; }
        }

        /* ── Nav ── */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 100;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px clamp(20px, 5vw, 60px);
            background: rgba(8, 8, 16, 0.72);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid var(--glass-border);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 14px;
            text-decoration: none;
            color: inherit;
        }

        .brand img {
            width: 44px;
            height: 44px;
            border-radius: 11px;
            box-shadow: 0 0 0 1px rgba(204, 173, 107, 0.25), 0 8px 24px rgba(0,0,0,0.45);
        }

        .brand-name {
            font-family: var(--serif);
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.18em;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            gap: clamp(16px, 3vw, 36px);
            list-style: none;
            align-items: center;
        }

        .nav-link {
            font-family: var(--mono);
            font-size: 0.62rem;
            font-weight: 600;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: rgba(235, 230, 217, 0.45);
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px 0;
            position: relative;
            transition: color 0.25s;
        }

        .nav-link:hover, .nav-link.active { color: var(--gold); }

        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
            transition: width 0.3s;
        }

        .nav-link:hover::after, .nav-link.active::after { width: 100%; }

        .nav-cta {
            padding: 10px 20px;
            border-radius: 999px;
            border: 1px solid rgba(204, 173, 107, 0.35);
            background: var(--gold-dim);
            color: var(--gold-light);
            font-family: var(--mono);
            font-size: 0.62rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            text-decoration: none;
            transition: all 0.25s;
        }

        .nav-cta:hover {
            background: rgba(204, 173, 107, 0.2);
            border-color: var(--gold);
        }

        /* ── Views ── */
        .viewport { display: none; }
        .viewport.active { display: block; animation: fadeUp 0.7s cubic-bezier(0.16, 1, 0.3, 1); }

        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(24px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ── Hero ── */
        .hero {
            padding: clamp(120px, 18vh, 180px) clamp(20px, 5vw, 40px) 60px;
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-copy { max-width: 540px; }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 6px 14px;
            border-radius: 999px;
            border: 1px solid rgba(204, 173, 107, 0.2);
            background: var(--gold-dim);
            font-family: var(--mono);
            font-size: 0.58rem;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 28px;
        }

        .eyebrow-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gold);
            box-shadow: 0 0 12px var(--gold);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        .hero h1 {
            font-family: var(--serif);
            font-size: clamp(2.4rem, 5vw, 3.6rem);
            font-weight: 400;
            line-height: 1.08;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            background: linear-gradient(165deg, #fff 0%, rgba(235,230,217,0.75) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-lead {
            font-size: 1.05rem;
            color: rgba(235, 230, 217, 0.55);
            margin-bottom: 36px;
            max-width: 460px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 32px;
            border-radius: 14px;
            background: linear-gradient(145deg, var(--gold-light), var(--gold));
            color: var(--oxford-dark);
            font-family: var(--serif);
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-decoration: none;
            border: none;
            cursor: pointer;
            box-shadow: 0 12px 40px rgba(204, 173, 107, 0.18);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 48px rgba(204, 173, 107, 0.28);
        }

        .btn-ghost {
            font-family: var(--mono);
            font-size: 0.65rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: rgba(235, 230, 217, 0.5);
            text-decoration: none;
            padding: 16px 8px;
            transition: color 0.2s;
        }

        .btn-ghost:hover { color: var(--gold); }

        /* ── Device showcase ── */
        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 480px;
        }

        .device-ring {
            position: absolute;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            border: 1px solid rgba(204, 173, 107, 0.08);
            animation: spinSlow 40s linear infinite;
        }

        .device-ring::before {
            content: "";
            position: absolute;
            inset: -1px;
            border-radius: 50%;
            border: 1px solid transparent;
            border-top-color: rgba(204, 173, 107, 0.35);
        }

        @keyframes spinSlow { to { transform: rotate(360deg); } }

        .phone {
            width: 260px;
            border-radius: 36px;
            padding: 12px;
            background: linear-gradient(160deg, #1a2233 0%, #0a0e18 100%);
            box-shadow:
                0 0 0 1px rgba(255,255,255,0.08),
                0 40px 80px rgba(0,0,0,0.65),
                inset 0 1px 0 rgba(255,255,255,0.06);
            position: relative;
            z-index: 2;
        }

        .phone-notch {
            width: 90px;
            height: 24px;
            background: #000;
            border-radius: 0 0 14px 14px;
            margin: 0 auto 8px;
        }

        .phone-screen {
            border-radius: 26px;
            overflow: hidden;
            background: var(--oxford-dark);
            min-height: 420px;
            border: 1px solid var(--oxford-stroke);
        }

        /* In-app UI mock */
        .mock-header {
            padding: 14px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid var(--glass-border);
            background: rgba(15, 22, 36, 0.9);
        }

        .mock-header img { width: 28px; height: 28px; border-radius: 7px; }

        .mock-header span {
            font-family: var(--serif);
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.12em;
        }

        .mock-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            padding: 12px;
        }

        .mock-stat {
            padding: 10px 8px;
            border-radius: 10px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
            text-align: center;
        }

        .mock-stat strong {
            display: block;
            font-family: var(--serif);
            font-size: 1rem;
            color: var(--gold);
        }

        .mock-stat small {
            font-family: var(--mono);
            font-size: 0.45rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: rgba(235,230,217,0.35);
        }

        .mock-modules { padding: 0 12px 12px; display: flex; flex-direction: column; gap: 8px; }

        .mock-row {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            border-radius: 12px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
        }

        .mock-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--gold-dim);
            border: 1px solid rgba(204, 173, 107, 0.2);
            flex-shrink: 0;
        }

        .mock-icon svg { width: 18px; height: 18px; stroke: var(--gold); fill: none; stroke-width: 1.5; }

        .mock-row div:last-child strong {
            display: block;
            font-size: 0.72rem;
            font-weight: 600;
            margin-bottom: 2px;
        }

        .mock-row div:last-child span {
            font-size: 0.62rem;
            color: rgba(235,230,217,0.4);
        }

        .phone-float {
            position: absolute;
            width: 200px;
            z-index: 3;
            opacity: 0.92;
            transform: rotate(-6deg) translateX(-120px) translateY(40px);
            animation: floatA 5s ease-in-out infinite;
        }

        .phone-float.b {
            transform: rotate(8deg) translateX(130px) translateY(-20px);
            animation: floatB 6s ease-in-out infinite;
            z-index: 1;
        }

        @keyframes floatA {
            0%, 100% { transform: rotate(-6deg) translateX(-120px) translateY(40px); }
            50% { transform: rotate(-4deg) translateX(-115px) translateY(32px); }
        }

        @keyframes floatB {
            0%, 100% { transform: rotate(8deg) translateX(130px) translateY(-20px); }
            50% { transform: rotate(6deg) translateX(125px) translateY(-28px); }
        }

        .phone-float .phone-screen { min-height: 280px; }

        .mock-chat { padding: 12px; display: flex; flex-direction: column; gap: 8px; }

        .bubble {
            max-width: 85%;
            padding: 10px 12px;
            border-radius: 14px;
            font-size: 0.65rem;
            line-height: 1.45;
        }

        .bubble.ai {
            align-self: flex-start;
            background: rgba(204, 173, 107, 0.08);
            border: 1px solid rgba(204, 173, 107, 0.15);
            color: rgba(235,230,217,0.75);
        }

        .bubble.user {
            align-self: flex-end;
            background: var(--oxford-card);
            border: 1px solid var(--oxford-stroke);
            color: rgba(235,230,217,0.6);
        }

        .mock-search {
            margin: 12px;
            padding: 10px 12px;
            border-radius: 10px;
            background: var(--glass);
            border: 1px solid rgba(204, 173, 107, 0.15);
            font-family: var(--mono);
            font-size: 0.58rem;
            color: var(--gold);
            letter-spacing: 0.04em;
        }

        .mock-result {
            margin: 0 12px 8px;
            padding: 10px;
            border-radius: 10px;
            background: var(--glass);
            border-left: 2px solid var(--gold);
        }

        .mock-result strong { font-size: 0.62rem; display: block; margin-bottom: 4px; }
        .mock-result span { font-size: 0.55rem; color: rgba(235,230,217,0.35); font-family: var(--mono); }

        .phone-screen { position: relative; }

        .briefing-mock {
            position: absolute;
            inset: 0;
            z-index: 4;
            display: flex;
            align-items: flex-end;
            padding: 12px;
            background: rgba(4, 4, 10, 0.42);
            pointer-events: none;
        }

        .briefing-mock-inner {
            width: 100%;
            padding: 12px 12px 10px;
            border-radius: 14px;
            background: linear-gradient(160deg, rgba(15, 22, 36, 0.98), rgba(8, 8, 16, 0.96));
            border: 1px solid rgba(204, 173, 107, 0.28);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
        }

        .briefing-mock-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 8px;
        }

        .briefing-mock-head span {
            font-family: var(--serif);
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--gold-light);
            letter-spacing: 0.04em;
        }

        .briefing-close {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            border: 1px solid rgba(204, 173, 107, 0.25);
            background: rgba(204, 173, 107, 0.08);
            color: rgba(235, 230, 217, 0.55);
            font-size: 0.55rem;
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .briefing-mock-inner p {
            font-size: 0.58rem;
            line-height: 1.5;
            color: rgba(235, 230, 217, 0.62);
            margin: 0;
        }

        .briefing-mock-tag {
            display: inline-block;
            margin-top: 8px;
            font-family: var(--mono);
            font-size: 0.42rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--gold);
            opacity: 0.75;
        }

        /* ── Sections ── */
        .section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 80px clamp(20px, 5vw, 40px);
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }

        .section-head h2 {
            font-family: var(--serif);
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 400;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .section-head p {
            color: rgba(235, 230, 217, 0.45);
            font-size: 0.95rem;
        }

        .bento {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }

        .bento-card {
            grid-column: span 6;
            padding: 32px;
            border-radius: 20px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
            position: relative;
            overflow: hidden;
            transition: border-color 0.3s, transform 0.3s;
        }

        .bento-card:hover {
            border-color: rgba(204, 173, 107, 0.2);
            transform: translateY(-3px);
        }

        .bento-card.wide { grid-column: span 12; }

        .bento-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(204,173,107,0.25), transparent);
        }

        .bento-tag {
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--gold);
            opacity: 0.7;
            margin-bottom: 16px;
        }

        .bento-card h3 {
            font-family: var(--serif);
            font-size: 1.45rem;
            font-weight: 600;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .bento-card h3 svg {
            width: 22px;
            height: 22px;
            stroke: var(--gold);
            fill: none;
            stroke-width: 1.4;
            flex-shrink: 0;
        }

        .bento-card p {
            font-size: 0.88rem;
            color: rgba(235, 230, 217, 0.48);
            line-height: 1.65;
            max-width: 520px;
        }

        .metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 48px;
        }

        .metric {
            text-align: center;
            padding: 24px 16px;
            border-radius: 16px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
        }

        .metric strong {
            display: block;
            font-family: var(--serif);
            font-size: 1.8rem;
            color: var(--gold);
            margin-bottom: 4px;
        }

        .metric span {
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: rgba(235,230,217,0.35);
        }

        /* ── Audit strip ── */
        .audit {
            margin-top: 48px;
            padding: 28px;
            border-radius: 18px;
            border: 1px solid rgba(204, 173, 107, 0.12);
            background: linear-gradient(135deg, rgba(204,173,107,0.04), transparent);
        }

        .audit h4 {
            font-family: var(--mono);
            font-size: 0.58rem;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 20px;
        }

        .audit-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .audit-item {
            padding: 18px;
            border-radius: 12px;
            background: rgba(0,0,0,0.25);
            border: 1px solid var(--glass-border);
        }

        .audit-item strong {
            display: block;
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.1em;
            color: var(--gold);
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .audit-item p {
            font-size: 0.78rem;
            color: rgba(235,230,217,0.42);
            line-height: 1.55;
        }

        /* ── Legal vault ── */
        .vault {
            max-width: 820px;
            margin: 0 auto;
            padding: clamp(36px, 6vw, 64px);
            border-radius: 24px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
            position: relative;
        }

        .vault::after {
            content: "CONFIDENTIEL";
            position: absolute;
            top: 32px;
            right: 32px;
            font-family: var(--mono);
            font-size: 0.5rem;
            letter-spacing: 0.18em;
            color: rgba(204, 173, 107, 0.35);
            border: 1px solid rgba(204, 173, 107, 0.15);
            padding: 4px 10px;
            border-radius: 4px;
        }

        .vault h2 {
            font-family: var(--serif);
            font-size: 2rem;
            font-weight: 400;
            margin-bottom: 8px;
        }

        .vault-meta {
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 36px;
            display: block;
        }

        .vault h3 {
            font-family: var(--serif);
            font-size: 1.15rem;
            color: var(--gold-light);
            margin: 28px 0 10px;
        }

        .vault p {
            font-size: 0.9rem;
            color: rgba(235, 230, 217, 0.55);
            margin-bottom: 16px;
            text-align: justify;
            line-height: 1.7;
        }

        .vault a { color: var(--gold); }

        /* ── Modal ── */
        .modal {
            position: fixed;
            inset: 0;
            z-index: 200;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(4, 4, 10, 0.75);
            backdrop-filter: blur(16px);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.35s;
        }

        .modal.open { opacity: 1; pointer-events: auto; }

        .modal-box {
            width: 380px;
            max-width: 92vw;
            padding: 40px 32px;
            border-radius: 22px;
            background: var(--oxford-card);
            border: 1px solid rgba(204, 173, 107, 0.2);
            text-align: center;
            transform: scale(0.94);
            transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
            box-shadow: 0 40px 100px rgba(0,0,0,0.6);
        }

        .modal.open .modal-box { transform: scale(1); }

        .modal-box img {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            margin-bottom: 20px;
            box-shadow: 0 0 0 1px rgba(204,173,107,0.2);
        }

        .modal-box h3 {
            font-family: var(--serif);
            font-size: 1.4rem;
            margin-bottom: 10px;
        }

        .modal-box p {
            font-size: 0.85rem;
            color: rgba(235,230,217,0.45);
            margin-bottom: 24px;
        }

        .email-pill {
            display: block;
            padding: 14px;
            border-radius: 12px;
            background: var(--gold-dim);
            border: 1px solid rgba(204, 173, 107, 0.2);
            color: var(--gold);
            font-family: var(--mono);
            font-size: 0.78rem;
            text-decoration: none;
            font-weight: 600;
            margin-bottom: 20px;
            transition: background 0.2s;
        }

        .email-pill:hover { background: rgba(204, 173, 107, 0.18); }

        .contact-details {
            margin-top: 28px;
            text-align: left;
        }

        .contact-row {
            display: grid;
            grid-template-columns: minmax(88px, 120px) 1fr;
            gap: 12px 20px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .contact-row:last-child { border-bottom: none; }

        .contact-row dt {
            font-size: 0.72rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: rgba(235, 230, 217, 0.42);
            margin: 0;
        }

        .contact-row dd {
            margin: 0;
            font-size: 0.92rem;
            line-height: 1.65;
            color: rgba(235, 230, 217, 0.88);
        }

        .contact-link {
            color: var(--gold);
            text-decoration: none;
        }

        .contact-link:hover { text-decoration: underline; }

        .contact-vault .email-pill {
            display: inline-block;
            margin-bottom: 0;
        }

        @media (max-width: 560px) {
            .contact-row {
                grid-template-columns: 1fr;
                gap: 6px;
            }
        }

        .modal-close {
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: rgba(235,230,217,0.25);
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }

        .modal-close:hover { color: rgba(235,230,217,0.55); }

        /* ── Footer ── */
        footer {
            border-top: 1px solid var(--glass-border);
            padding: 48px clamp(20px, 5vw, 40px);
            text-align: center;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .footer-brand img { width: 32px; height: 32px; border-radius: 8px; }

        .footer-brand span {
            font-family: var(--serif);
            letter-spacing: 0.2em;
            font-size: 0.9rem;
        }

        .footer-support {
            margin-bottom: 14px;
            font-size: 0.82rem;
        }

        .footer-support a {
            color: var(--gold);
            text-decoration: none;
        }

        .footer-social {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            margin-bottom: 16px;
        }

        .footer-social-label {
            font-family: var(--mono);
            font-size: 0.52rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: rgba(235,230,217,0.35);
            margin-right: 4px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(201,169,98,0.18);
            background: rgba(255,255,255,0.03);
            color: var(--gold);
            text-decoration: none;
            transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
        }

        .footer-social a:hover {
            border-color: rgba(201,169,98,0.45);
            background: rgba(201,169,98,0.08);
            transform: translateY(-1px);
        }

        .footer-social a svg {
            width: 18px;
            height: 18px;
            fill: currentColor;
        }

        .footer-social a.social-icon-prestige svg {
            fill: none;
            stroke: currentColor;
        }

        .social-icon-prestige {
            color: rgba(255, 255, 255, 0.6);
            display: inline-flex;
            align-items: center;
            transition: all 0.3s ease;
        }

        .footer-social a.social-icon-prestige {
            color: rgba(255, 255, 255, 0.6);
        }

        .social-icon-prestige:hover,
        .footer-social a.social-icon-prestige:hover {
            color: #d4af37;
            transform: translateY(-2px);
        }

        .footer-legal {
            font-family: var(--mono);
            font-size: 0.52rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: rgba(235,230,217,0.2);
        }



        /* ── Features demonstration (student life) ── */
        #section-features-demo { scroll-margin-top: 96px; margin-top: 72px; }
        .features-demo { display: grid; gap: 48px; margin-top: 8px; }
        .demo-row {
            display: grid;
            grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
            gap: 32px;
            align-items: center;
            padding: 28px;
            border-radius: 22px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
            position: relative;
            overflow: hidden;
        }
        .demo-row::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at top left, rgba(204,173,107,0.05), transparent 60%);
            pointer-events: none;
        }
        .demo-row.reverse { direction: rtl; }
        .demo-row.reverse > * { direction: ltr; }
        .demo-visual {
            position: relative;
            min-height: 280px;
            border-radius: 18px;
            background: linear-gradient(165deg, rgba(8,12,22,0.95), rgba(4,6,12,0.98));
            border: 1px solid rgba(204,173,107,0.16);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.03), 0 18px 40px rgba(0,0,0,0.35);
            overflow: hidden;
        }
        .demo-screenshot-slot {
            position: absolute;
            inset: 10px;
            border-radius: 14px;
            border: 1px dashed rgba(204,173,107,0.22);
            display: flex;
            align-items: flex-end;
            justify-content: center;
            padding: 10px;
            pointer-events: none;
            z-index: 2;
        }
        .demo-screenshot-slot span {
            font-family: var(--mono);
            font-size: 0.42rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: rgba(204,173,107,0.45);
            background: rgba(0,0,0,0.55);
            padding: 4px 8px;
            border-radius: 6px;
        }
        .demo-mock { position: relative; z-index: 1; padding: 16px; height: 100%; display: flex; flex-direction: column; gap: 10px; }
        .demo-mock-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 10px;
            border-radius: 10px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(204,173,107,0.12);
            font-family: var(--mono);
            font-size: 0.52rem;
            color: rgba(235,230,217,0.45);
        }
        .demo-mock-bar strong { color: var(--gold-light); font-weight: 600; }
        .demo-map-grid {
            flex: 1;
            min-height: 160px;
            border-radius: 12px;
            background:
                radial-gradient(circle at 30% 40%, rgba(204,173,107,0.12) 0 6px, transparent 7px),
                radial-gradient(circle at 62% 28%, rgba(204,173,107,0.18) 0 7px, transparent 8px),
                radial-gradient(circle at 78% 62%, rgba(204,173,107,0.1) 0 5px, transparent 6px),
                linear-gradient(180deg, rgba(12,22,38,0.9), rgba(6,10,18,0.95));
            border: 1px solid rgba(204,173,107,0.1);
            position: relative;
        }
        .demo-map-grid::after {
            content: "";
            position: absolute;
            inset: 12px;
            border: 1px solid rgba(204,173,107,0.08);
            border-radius: 8px;
        }
        .demo-chips { display: flex; flex-wrap: wrap; gap: 6px; }
        .demo-chip {
            padding: 4px 8px;
            border-radius: 999px;
            font-family: var(--mono);
            font-size: 0.44rem;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--gold);
            background: rgba(204,173,107,0.08);
            border: 1px solid rgba(204,173,107,0.18);
        }
        .demo-chat-thread { display: flex; flex-direction: column; gap: 8px; flex: 1; justify-content: flex-end; }
        .demo-bubble {
            max-width: 88%;
            padding: 8px 10px;
            border-radius: 12px;
            font-size: 0.62rem;
            line-height: 1.45;
        }
        .demo-bubble.user { align-self: flex-end; background: rgba(204,173,107,0.14); border: 1px solid rgba(204,173,107,0.22); color: rgba(235,230,217,0.78); }
        .demo-bubble.ai { align-self: flex-start; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); color: rgba(235,230,217,0.62); }
        .demo-bubble.system { align-self: center; font-family: var(--mono); font-size: 0.48rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(204,173,107,0.55); }
        .demo-progress {
            padding: 14px;
            border-radius: 12px;
            background: rgba(0,0,0,0.28);
            border: 1px solid rgba(204,173,107,0.12);
        }
        .demo-progress-track {
            height: 6px;
            border-radius: 999px;
            background: rgba(255,255,255,0.06);
            overflow: hidden;
            margin-top: 10px;
        }
        .demo-progress-fill {
            width: 68%;
            height: 100%;
            border-radius: inherit;
            background: linear-gradient(90deg, rgba(204,173,107,0.45), var(--gold));
        }
        .demo-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
        .demo-stat {
            padding: 10px 8px;
            border-radius: 10px;
            text-align: center;
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(204,173,107,0.1);
        }
        .demo-stat strong { display: block; font-family: var(--serif); color: var(--gold-light); font-size: 0.95rem; }
        .demo-stat small { font-family: var(--mono); font-size: 0.42rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(235,230,217,0.35); }
        .demo-video-grid {
            flex: 1;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 6px;
            min-height: 120px;
        }
        .demo-video-tile {
            border-radius: 8px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(204,173,107,0.1);
            position: relative;
        }
        .demo-video-tile.live::after {
            content: "LIVE";
            position: absolute;
            top: 6px;
            left: 6px;
            font-family: var(--mono);
            font-size: 0.38rem;
            letter-spacing: 0.1em;
            color: #ffb4b4;
            background: rgba(120,20,20,0.55);
            padding: 2px 5px;
            border-radius: 4px;
        }
        .demo-body { position: relative; z-index: 1; }
        .demo-tag {
            font-family: var(--mono);
            font-size: 0.48rem;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 10px;
        }
        .demo-body h3 {
            font-family: var(--serif);
            font-size: clamp(1.25rem, 2.2vw, 1.55rem);
            color: var(--gold-light);
            margin-bottom: 10px;
            line-height: 1.25;
        }
        .demo-body .demo-lead {
            font-size: 0.86rem;
            color: rgba(235,230,217,0.52);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .demo-benefits {
            list-style: none;
            padding: 0;
            margin: 0 0 18px;
            display: grid;
            gap: 8px;
        }
        .demo-benefits li {
            position: relative;
            padding-left: 16px;
            font-size: 0.8rem;
            color: rgba(235,230,217,0.58);
            line-height: 1.55;
        }
        .demo-benefits li::before {
            content: "◆";
            position: absolute;
            left: 0;
            top: 0;
            color: var(--gold);
            font-size: 0.45rem;
        }
        .demo-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .demo-tech span {
            font-family: var(--mono);
            font-size: 0.44rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding: 5px 8px;
            border-radius: 6px;
            color: rgba(235,230,217,0.55);
            background: rgba(0,0,0,0.35);
            border: 1px solid rgba(204,173,107,0.14);
        }
        @media (max-width: 900px) {
            .demo-row, .demo-row.reverse { grid-template-columns: 1fr; direction: ltr; }
            .demo-visual { min-height: 240px; }
        }

        .demo-visual--shots {
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 14px;
            min-height: 480px;
        }

        .demo-device {
            width: min(250px, 100%);
            border-radius: 34px;
            padding: 10px;
            background: #04060c;
            border: 1px solid rgba(204, 173, 107, 0.34);
            position: relative;
            z-index: 1;
        }

        .demo-device-notch {
            width: 34%;
            height: 5px;
            margin: 0 auto 9px;
            border-radius: 99px;
            background: #0c0e14;
        }

        .demo-device img {
            width: 100%;
            border-radius: 26px;
            display: block;
            object-fit: cover;
            object-position: top center;
        }

        .demo-device-duo {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            width: 100%;
        }

        .demo-device-duo .demo-device { width: min(210px, 46%); }

        .demo-device-trio {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 10px;
            width: 100%;
            max-width: 420px;
        }

        .demo-device-trio .demo-device {
            width: 100%;
            padding: 7px;
            border-radius: 22px;
        }

        .demo-device-trio .demo-device img { border-radius: 18px; }

        .demo-thumb-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            justify-content: center;
            max-width: 340px;
            z-index: 1;
        }

        .demo-thumb {
            width: 54px;
            height: 96px;
            padding: 0;
            border-radius: 9px;
            overflow: hidden;
            border: 2px solid transparent;
            background: rgba(0, 0, 0, 0.35);
            cursor: pointer;
            opacity: 0.5;
            transition: opacity 0.2s, border-color 0.2s;
        }

        .demo-thumb.active,
        .demo-thumb:hover { opacity: 1; border-color: var(--gold); }

        .demo-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            object-position: top;
        }

        .demo-visual--shots .demo-screenshot-slot,
        .demo-visual--shots .demo-mock { display: none; }

        .prestige-mosaic {
            margin-bottom: 64px;
            padding: 32px 28px;
            border-radius: 24px;
            background: linear-gradient(165deg, rgba(12, 18, 32, 0.72), rgba(6, 8, 14, 0.88));
            border: 1px solid rgba(204, 173, 107, 0.18);
        }

        .prestige-mosaic-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 36px;
        }

        .prestige-mosaic-head h3 {
            font-family: var(--serif);
            font-size: clamp(1.5rem, 2.8vw, 2rem);
            color: var(--gold-light);
            margin-bottom: 10px;
            letter-spacing: 0.04em;
        }

        .prestige-mosaic-head p {
            font-size: 0.88rem;
            color: rgba(235, 230, 217, 0.48);
            line-height: 1.7;
        }

        .prestige-mosaic-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 18px;
            align-items: end;
        }

        .mosaic-item {
            grid-column: span 3;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
            padding: 18px 14px 14px;
            border-radius: 18px;
            background: rgba(0, 0, 0, 0.28);
            border: 1px solid rgba(204, 173, 107, 0.12);
            transition: border-color 0.25s, transform 0.25s;
        }

        .mosaic-item:hover {
            border-color: rgba(204, 173, 107, 0.32);
            transform: translateY(-3px);
        }

        .mosaic-item.hero { grid-column: span 4; padding-top: 24px; }
        .mosaic-item.wide { grid-column: span 5; }
        .mosaic-item.tall .demo-device { width: min(220px, 100%); }

        .mosaic-caption {
            font-family: var(--mono);
            font-size: 0.44rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--gold);
            text-align: center;
            line-height: 1.4;
        }

        @media (max-width: 1100px) {
            .mosaic-item, .mosaic-item.hero, .mosaic-item.wide { grid-column: span 4; }
        }

        @media (max-width: 760px) {
            .mosaic-item, .mosaic-item.hero, .mosaic-item.wide { grid-column: span 6; }
            .demo-device-trio { grid-template-columns: 1fr 1fr; }
            .demo-device-trio .demo-device:last-child { grid-column: span 2; max-width: 210px; margin: 0 auto; }
        }

        @media (max-width: 520px) {
            .mosaic-item, .mosaic-item.hero, .mosaic-item.wide { grid-column: span 12; }
            .demo-device-duo .demo-device { width: min(200px, 100%); }
        }

        /* ── Research rigor portal (investors / PhD / faculty) ── */
        #section-research { scroll-margin-top: 96px; margin-top: 72px; }
        .research-grid { display: grid; gap: 24px; margin-top: 28px; }
        .research-card {
            padding: 32px 28px;
            border-radius: 20px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
            position: relative;
            overflow: hidden;
        }
        .research-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at top right, rgba(204,173,107,0.06), transparent 55%);
            pointer-events: none;
        }
        .research-tag {
            font-family: var(--mono);
            font-size: 0.48rem;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 14px;
        }
        .research-card h3 {
            font-family: var(--serif);
            font-size: 1.45rem;
            color: var(--gold-light);
            margin-bottom: 10px;
        }
        .research-card > p.lead {
            font-size: 0.84rem;
            color: rgba(235,230,217,0.52);
            line-height: 1.75;
            margin-bottom: 22px;
            max-width: 920px;
        }
        .research-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--gold-dim);
            border: 1px solid rgba(204,173,107,0.22);
            margin-bottom: 12px;
        }
        .research-icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--gold);
            fill: none;
            stroke-width: 1.35;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .arch-flow {
            display: grid;
            grid-template-columns: repeat(5, minmax(0, 1fr));
            gap: 10px;
            align-items: stretch;
            margin-bottom: 18px;
        }
        .arch-node {
            padding: 14px 12px;
            border-radius: 12px;
            background: rgba(0,0,0,0.28);
            border: 1px solid var(--glass-border);
            text-align: center;
            position: relative;
        }
        .arch-node:not(:last-child)::after {
            content: "→";
            position: absolute;
            right: -11px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(204,173,107,0.45);
            font-family: var(--mono);
            font-size: 0.75rem;
            z-index: 2;
        }
        .arch-node-label {
            font-family: var(--mono);
            font-size: 0.46rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 6px;
        }
        .arch-node-title {
            font-family: var(--serif);
            font-size: 0.82rem;
            color: rgba(235,230,217,0.82);
            line-height: 1.35;
        }
        .arch-terminal {
            border-radius: 12px;
            background: #02060d;
            border: 1px solid rgba(204,173,107,0.18);
            overflow: hidden;
        }
        .arch-terminal-bar {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 12px;
            background: rgba(255,255,255,0.03);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .arch-terminal-bar span {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(204,173,107,0.25);
        }
        .arch-terminal-bar em {
            margin-left: auto;
            font-style: normal;
            font-family: var(--mono);
            font-size: 0.45rem;
            letter-spacing: 0.12em;
            color: rgba(235,230,217,0.28);
        }
        .arch-terminal pre {
            margin: 0;
            padding: 16px 18px;
            font-family: var(--mono);
            font-size: 0.62rem;
            line-height: 1.75;
            color: rgba(204,173,107,0.78);
            overflow-x: auto;
            white-space: pre;
        }
        .arch-terminal .dim { color: rgba(235,230,217,0.28); }
        .arch-terminal .ok { color: #7ec89a; }

        .arch-fanout-label {
            font-family: var(--mono);
            font-size: 0.48rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: rgba(235,230,217,0.35);
            margin-top: 14px;
            margin-bottom: 8px;
        }
        .arch-fanout-brands { grid-template-columns: repeat(5, 1fr); }
        .arch-fanout-note {
            margin-top: 10px;
            font-size: 0.68rem;
            color: rgba(235,230,217,0.32);
            line-height: 1.5;
            font-family: var(--mono);
        }
        .arch-fanout {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 8px;
            margin-top: 14px;
        }
        .arch-api {
            padding: 10px 8px;
            border-radius: 8px;
            background: rgba(204,173,107,0.04);
            border: 1px dashed rgba(204,173,107,0.2);
            font-family: var(--mono);
            font-size: 0.5rem;
            letter-spacing: 0.06em;
            text-align: center;
            color: rgba(235,230,217,0.55);
        }
        .honor-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .honor-item {
            padding: 20px 18px;
            border-radius: 14px;
            background: rgba(0,0,0,0.22);
            border: 1px solid var(--glass-border);
        }
        .honor-item h4 {
            font-family: var(--serif);
            font-size: 1rem;
            color: var(--gold-light);
            margin: 10px 0 8px;
        }
        .honor-item p {
            font-size: 0.78rem;
            color: rgba(235,230,217,0.48);
            line-height: 1.6;
        }

        .research-trust {
            background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, rgba(0,8,18,0.4) 100%);
            border-color: rgba(204,173,107,0.2);
        }
        .trust-export-lead {
            font-size: 0.82rem;
            color: rgba(235,230,217,0.55);
            line-height: 1.7;
            margin-bottom: 18px;
            max-width: 880px;
        }
        .trust-vault-block {
            padding: 18px 20px;
            border-radius: 12px;
            background: rgba(0,0,0,0.28);
            border: 1px solid rgba(204,173,107,0.15);
            margin-bottom: 20px;
        }
        .trust-vault-block p {
            font-size: 0.8rem;
            color: rgba(235,230,217,0.52);
            line-height: 1.65;
            margin: 0;
        }
        .trust-standards {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            justify-content: center;
            padding-top: 16px;
            border-top: 1px solid var(--glass-border);
            list-style: none;
            margin: 0;
        }
        .trust-standards li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--mono);
            font-size: 0.52rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--gold);
        }
        .trust-standards li svg {
            width: 14px;
            height: 14px;
            stroke: var(--gold);
            fill: none;
            stroke-width: 2;
            flex-shrink: 0;
        }
        .lang-toggle {
            display: inline-flex;
            border-radius: 8px;
            border: 1px solid rgba(204,173,107,0.28);
            overflow: hidden;
            background: rgba(0,0,0,0.2);
        }
        .lang-seg {
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.12em;
            padding: 8px 14px;
            background: transparent;
            color: rgba(235,230,217,0.4);
            border: none;
            cursor: pointer;
            transition: background 0.2s, color 0.2s;
        }
        .lang-seg:hover { color: var(--gold-light); }
        .lang-seg.active {
            background: var(--gold-dim);
            color: var(--gold-light);
        }
        .lang-wrap { display: flex; align-items: center; }

        .research-core {
            background: linear-gradient(160deg, rgba(204,173,107,0.05), rgba(0,8,18,0.55));
            border-color: rgba(204,173,107,0.22);
        }
        .perf-dashboard {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .perf-tile {
            padding: 18px 16px;
            border-radius: 12px;
            background: rgba(0,0,0,0.25);
            border: 1px solid var(--glass-border);
            text-align: left;
        }
        .perf-tile-label {
            font-family: var(--mono);
            font-size: 0.48rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 6px;
        }
        .perf-tile-value {
            font-family: var(--serif);
            font-size: 1.15rem;
            color: rgba(235,230,217,0.88);
            line-height: 1.35;
        }
        .perf-tile-note {
            margin-top: 6px;
            font-size: 0.68rem;
            color: rgba(235,230,217,0.32);
            line-height: 1.45;
        }
        .metrics.research-metrics { grid-template-columns: repeat(6, 1fr); margin-top: 28px; }
        @media (max-width: 1100px) {
            .arch-flow { grid-template-columns: 1fr; }
            .arch-node:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -12px; transform: translateX(-50%); }
            .honor-grid, .perf-dashboard { grid-template-columns: 1fr; }
            .arch-fanout { grid-template-columns: repeat(2, 1fr); }
            .metrics.research-metrics { grid-template-columns: repeat(3, 1fr); }
        }
        @media (max-width: 640px) {
            .metrics.research-metrics { grid-template-columns: repeat(2, 1fr); }
            .arch-fanout { grid-template-columns: 1fr; }
        }

        /* ── Subscription plans ── */
        .plans-section { margin-top: 72px; scroll-margin-top: 96px; }

        .coins-section {
            margin-top: 56px;
            padding: 32px 28px;
            background: rgba(255,255,255,0.015);
            border: 1px solid rgba(204,173,107,0.14);
            border-radius: 20px;
        }
        .coins-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
            margin-top: 24px;
        }
        .coin-card {
            padding: 20px 18px;
            background: rgba(8,8,16,0.55);
            border: 1px solid rgba(255,255,255,0.06);
            border-radius: 14px;
        }
        .coin-card strong {
            display: block;
            font-family: var(--serif);
            font-size: 1.05rem;
            color: var(--gold);
            margin-bottom: 8px;
        }
        .coin-card span {
            font-size: 0.78rem;
            color: rgba(235,230,217,0.5);
            line-height: 1.5;
        }
        .coins-convert {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .coins-pill {
            font-family: var(--mono);
            font-size: 0.58rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid rgba(204,173,107,0.25);
            color: rgba(235,230,217,0.65);
        }
        .research-vertex {
            border-color: rgba(66, 133, 244, 0.22);
            background: linear-gradient(145deg, rgba(0,33,71,0.35) 0%, rgba(8,8,16,0.4) 55%);
        }
        .vertex-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
            margin-top: 20px;
        }
        .vertex-item {
            padding: 16px;
            border-radius: 12px;
            background: rgba(255,255,255,0.02);
            border: 1px solid rgba(255,255,255,0.05);
        }
        .vertex-item h4 {
            font-family: var(--mono);
            font-size: 0.62rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: rgba(138, 180, 248, 0.85);
            margin-bottom: 8px;
        }
        .vertex-item p {
            font-size: 0.82rem;
            color: rgba(235,230,217,0.55);
            line-height: 1.55;
        }
        
        .plans-scroll-wrap { position: relative; margin-top: 28px; }
        .plans-scroll-hint {
            text-align: center;
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: rgba(235,230,217,0.28);
            margin-bottom: 14px;
        }
        .plans-grid {
            display: flex;
            flex-direction: row;
            align-items: stretch;
            gap: 20px;
            overflow-x: auto;
            overflow-y: hidden;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scroll-behavior: smooth;
            padding: 4px 8px 28px;
            margin-top: 0;
            scrollbar-width: thin;
            scrollbar-color: rgba(204,173,107,0.35) transparent;
        }
        .plans-grid::-webkit-scrollbar { height: 6px; }
        .plans-grid::-webkit-scrollbar-thumb {
            background: rgba(204,173,107,0.35);
            border-radius: 999px;
        }
        .plan-card {
            flex: 0 0 min(340px, 88vw);
            scroll-snap-align: center;
            min-height: 560px;
            display: flex;
            flex-direction: column;
        }
        .plan-card .plan-features { flex: 1; }
        .plan-cta-wrap { margin-top: auto; padding-top: 20px; }
        .plan-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 14px 18px;
            border-radius: 12px;
            font-family: var(--serif);
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
        }
        .plan-cta-primary {
            background: linear-gradient(145deg, var(--gold-light), var(--gold));
            color: var(--oxford-deep);
            box-shadow: 0 10px 28px rgba(204, 173, 107, 0.18);
        }
        .plan-cta-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 36px rgba(204, 173, 107, 0.28); }
        .plan-cta-ghost {
            background: rgba(255,255,255,0.04);
            color: var(--gold-light);
            border: 1px solid rgba(204,173,107,0.35);
        }
        .plan-cta-ghost:hover { background: rgba(204,173,107,0.08); transform: translateY(-1px); }
        .plan-cta-note {
            margin-top: 8px;
            font-size: 0.68rem;
            color: rgba(235,230,217,0.32);
            text-align: center;
            line-height: 1.45;
        }
        .plan-card.featured-plus {
            border-color: rgba(204, 173, 107, 0.55);
            background: linear-gradient(160deg, rgba(204,173,107,0.07), rgba(0,8,18,0.5));
        }
        .plan-card.consumable {
            border-style: dashed;
            border-color: rgba(204, 173, 107, 0.28);
        }
        .plan-product-id {
            font-family: var(--mono);
            font-size: 0.48rem;
            letter-spacing: 0.08em;
            color: rgba(235,230,217,0.28);
            margin-top: 14px;
        }
        .plans-compare {
            margin-top: 36px;
            padding: 28px 32px;
            border-radius: 20px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
        }
        .plans-compare h3 {
            font-family: var(--serif);
            font-size: 1.15rem;
            color: var(--gold-light);
            margin-bottom: 12px;
        }
        .plans-compare p {
            font-size: 0.84rem;
            color: rgba(235,230,217,0.52);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .plan-card {
            padding: 32px 28px;
            border-radius: 20px;
            background: var(--glass);
            border: 1px solid var(--glass-border);
            position: relative;
        }
        .plan-card.featured {
            border-color: rgba(204, 173, 107, 0.45);
            box-shadow: 0 0 0 1px rgba(204, 173, 107, 0.12), 0 24px 60px rgba(0,0,0,0.35);
        }
        .plan-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            font-family: var(--mono);
            font-size: 0.48rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--oxford-deep);
            background: var(--gold);
            padding: 4px 10px;
            border-radius: 999px;
        }
        .plan-name {
            font-family: var(--serif);
            font-size: 1.35rem;
            margin-bottom: 8px;
        }
        .plan-price {
            font-family: var(--mono);
            font-size: 1.5rem;
            color: var(--gold-light);
            margin-bottom: 4px;
        }
        .plan-period {
            font-size: 0.75rem;
            color: rgba(235,230,217,0.4);
            margin-bottom: 20px;
        }
        .plan-trial {
            font-size: 0.78rem;
            color: var(--gold);
            margin-bottom: 16px;
        }
        .plan-features {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .plan-features li {
            font-size: 0.82rem;
            color: rgba(235,230,217,0.55);
            padding: 8px 0 8px 18px;
            position: relative;
            line-height: 1.55;
            border-bottom: 1px solid rgba(255,255,255,0.04);
        }
        .plan-limits-title {
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--gold);
            margin: 18px 0 8px;
        }
        .plan-limits-list li { color: rgba(235,230,217,0.62); }
        .plan-limits-note {
            font-size: 0.78rem;
            color: rgba(235,230,217,0.38);
            line-height: 1.6;
            margin-top: 14px;
            font-style: italic;
        }
        .plan-features li::before {
            content: "◆";
            position: absolute;
            left: 0;
            color: var(--gold);
            font-size: 0.45rem;
            top: 12px;
        }
        .libraries-banner {
            margin-top: 28px;
            padding: 28px 32px;
            border-radius: 20px;
            background: linear-gradient(135deg, rgba(204,173,107,0.08), rgba(0,8,18,0.6));
            border: 1px solid rgba(204, 173, 107, 0.22);
        }
        .libraries-banner h3 {
            font-family: var(--serif);
            font-size: 1.25rem;
            color: var(--gold-light);
            margin-bottom: 8px;
        }
        .libraries-banner p { margin-bottom: 10px; }
        .libraries-list {
            font-family: var(--mono);
            font-size: 0.62rem;
            letter-spacing: 0.06em;
            line-height: 1.9;
            color: rgba(235,230,217,0.65);
        }
        .libraries-free-tag {
            display: inline-block;
            margin-top: 12px;
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--gold);
            border: 1px solid rgba(204,173,107,0.35);
            padding: 6px 12px;
            border-radius: 6px;
        }
        @media (max-width: 960px) {
            .plan-card { flex-basis: min(300px, 92vw); min-height: 520px; }
        }

        @media (max-width: 960px) {
            .hero { grid-template-columns: 1fr; text-align: center; }
            .hero-copy { margin: 0 auto; }
            .hero-lead { margin-left: auto; margin-right: auto; }
            .hero-actions { justify-content: center; }
            .hero-visual { min-height: 380px; margin-top: 20px; }
            .phone-float { display: none; }
            .bento-card { grid-column: span 12; }
            .metrics { grid-template-columns: repeat(2, 1fr); }
            .audit-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 600px) {
            .brand-name { display: none; }
        }

        /* ── Language selector ── */
        .lang-wrap { position: relative; list-style: none; }
        .lang-trigger {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 12px;
            border-radius: 999px;
            border: 1px solid rgba(204, 173, 107, 0.22);
            background: rgba(204, 173, 107, 0.06);
            color: var(--gold-light);
            font-family: var(--mono);
            font-size: 0.55rem;
            letter-spacing: 0.08em;
            cursor: pointer;
            max-width: 140px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .lang-trigger::after {
            content: "▾";
            font-size: 0.65rem;
            opacity: 0.6;
            flex-shrink: 0;
        }
        .lang-panel {
            display: none;
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            min-width: 220px;
            max-height: min(360px, 60vh);
            overflow-y: auto;
            background: rgba(8, 8, 16, 0.96);
            border: 1px solid rgba(204, 173, 107, 0.2);
            border-radius: 14px;
            padding: 8px;
            box-shadow: 0 24px 64px rgba(0,0,0,0.55);
            z-index: 200;
        }
        .lang-panel.open { display: block; }

        .lang-option {
            display: flex;
            align-items: center;
            gap: 10px;
            width: 100%;
            text-align: left;
            padding: 10px 12px;
            border: none;
            border-radius: 8px;
            background: transparent;
            color: rgba(235, 230, 217, 0.75);
            font-family: var(--sans);
            font-size: 0.82rem;
            cursor: pointer;
            transition: background 0.2s, color 0.2s;
        }
        .lang-option-code {
            font-family: var(--mono);
            font-size: 0.5rem;
            letter-spacing: 0.1em;
            color: var(--gold);
            min-width: 22px;
        }
        .lang-option-label { flex: 1; }
        .lang-option.active, .lang-option[aria-selected="true"] {
            background: var(--gold-dim);
            color: var(--gold-light);
        }
        .lang-panel { min-width: 240px; }
        .lang-option:hover { background: var(--gold-dim); color: var(--gold-light); }
        [dir="rtl"] .hero-copy { text-align: right; }
        [dir="rtl"] .hero-lead { margin-left: auto; margin-right: 0; }
        [dir="rtl"] .nav-links { flex-direction: row-reverse; }
        @media (max-width: 900px) {
            .lang-trigger { max-width: 100px; font-size: 0.5rem; padding: 6px 8px; }
        }

        /* ── Mobile navigation & layout (≤900px) — desktop unchanged above ── */
        .nav-menu-toggle,
        .nav-backdrop,
        .mobile-app-cta {
            display: none;
        }

        @media (max-width: 900px) {
            nav.oxfai-site-nav {
                padding: 14px 16px;
                padding-top: max(14px, env(safe-area-inset-top));
                backdrop-filter: none !important;
                -webkit-backdrop-filter: none !important;
                background: rgba(8, 8, 16, 0.97);
            }

            .nav-menu-toggle {
                display: inline-flex;
                flex-direction: column;
                justify-content: center;
                gap: 5px;
                width: 44px;
                height: 44px;
                margin-left: auto;
                border: 1px solid rgba(204, 173, 107, 0.22);
                border-radius: 12px;
                background: rgba(204, 173, 107, 0.06);
                cursor: pointer;
                flex-shrink: 0;
                z-index: 160;
            }

            .nav-menu-toggle span {
                display: block;
                width: 18px;
                height: 2px;
                margin: 0 auto;
                background: var(--gold-light);
                border-radius: 2px;
                transition: transform 0.25s ease, opacity 0.25s ease;
            }

            .oxfai-site-nav.nav-open .nav-menu-toggle span:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }

            .oxfai-site-nav.nav-open .nav-menu-toggle span:nth-child(2) {
                opacity: 0;
            }

            .oxfai-site-nav.nav-open .nav-menu-toggle span:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }

            .nav-backdrop {
                display: block;
                position: fixed;
                inset: 0;
                z-index: 140;
                background: rgba(0, 0, 0, 0.62);
                opacity: 0;
                pointer-events: none;
                transition: opacity 0.3s ease;
            }

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

            .nav-drawer-portal {
                position: fixed;
                inset: 0;
                z-index: 150;
                pointer-events: none;
            }

            .nav-drawer-portal .nav-links {
                position: fixed;
                top: 0;
                right: 0;
                width: min(320px, 88vw);
                height: 100dvh;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                margin: 0;
                padding: calc(72px + env(safe-area-inset-top)) 24px calc(32px + env(safe-area-inset-bottom));
                background: #080810;
                border-left: 1px solid var(--glass-border);
                box-shadow: -24px 0 64px rgba(0, 0, 0, 0.45);
                transform: translate3d(100%, 0, 0);
                transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), visibility 0s linear 0.32s;
                z-index: 151;
                overflow-y: auto;
                -webkit-overflow-scrolling: touch;
                visibility: hidden;
                pointer-events: none;
                -webkit-font-smoothing: antialiased;
                backface-visibility: hidden;
            }

            body.nav-menu-open .nav-drawer-portal {
                pointer-events: auto;
            }

            body.nav-menu-open .nav-drawer-portal .nav-links {
                transform: translate3d(0, 0, 0);
                visibility: visible;
                pointer-events: auto;
                transition: transform 0.32s cubic-bezier(0.16, 1, 0.3, 1), visibility 0s;
            }

            .nav-links > li {
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }

            .nav-links > li:last-child {
                border-bottom: none;
            }

            .nav-link {
                display: block;
                width: 100%;
                padding: 16px 0;
                font-size: 0.68rem;
                letter-spacing: 0.12em;
            }

            .nav-link::after { display: none; }

            .nav-link-desk { display: block; }

            .nav-links .nav-cta {
                display: flex !important;
                justify-content: center;
                width: 100%;
                margin-top: 20px;
                padding: 14px 20px;
                text-align: center;
            }

            .nav-links .lang-wrap {
                padding: 12px 0 4px;
                border-bottom: none;
            }

            .nav-links .lang-trigger {
                width: 100%;
                max-width: none;
                justify-content: space-between;
                font-size: 0.58rem;
                padding: 12px 14px;
            }

            .nav-links .lang-panel {
                position: static;
                width: 100%;
                min-width: 0;
                max-height: min(280px, 40vh);
                margin-top: 8px;
                box-shadow: none;
            }

            .mobile-app-cta {
                display: flex;
                align-items: center;
                justify-content: center;
                position: fixed;
                left: 16px;
                right: 16px;
                bottom: max(12px, env(safe-area-inset-bottom));
                z-index: 120;
                padding: 14px 20px;
                border-radius: 14px;
                background: linear-gradient(135deg, rgba(204, 173, 107, 0.22), rgba(0, 33, 71, 0.85));
                border: 1px solid rgba(204, 173, 107, 0.45);
                color: var(--gold-light);
                font-family: var(--mono);
                font-size: 0.62rem;
                font-weight: 700;
                letter-spacing: 0.14em;
                text-transform: uppercase;
                text-decoration: none;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
            }

            body.has-mobile-cta {
                padding-bottom: calc(72px + env(safe-area-inset-bottom));
            }

            body.nav-menu-open {
                overflow: hidden;
                position: fixed;
                width: 100%;
                left: 0;
                right: 0;
            }

            [dir="rtl"] .nav-drawer-portal .nav-links {
                right: auto;
                left: 0;
                border-left: none;
                border-right: 1px solid var(--glass-border);
                transform: translate3d(-100%, 0, 0);
            }

            [dir="rtl"] body.nav-menu-open .nav-drawer-portal .nav-links {
                transform: translate3d(0, 0, 0);
            }

            .page-main,
            main {
                overflow-x: clip;
                max-width: 100%;
            }

            .hero {
                padding-top: clamp(96px, 14vh, 140px);
                padding-left: 16px;
                padding-right: 16px;
                gap: 32px;
            }

            .hero h1 {
                font-size: clamp(1.85rem, 8vw, 2.6rem);
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
                max-width: 340px;
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions .btn-futuriste,
            .hero-actions .btn-testflight,
            .hero-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }

            .section {
                padding-left: 16px;
                padding-right: 16px;
            }

            footer {
                padding-left: 16px;
                padding-right: 16px;
                padding-bottom: calc(48px + env(safe-area-inset-bottom));
            }

            .footer-social {
                flex-wrap: wrap;
                gap: 10px;
            }

            .vault,
            .plans-scroll-wrap,
            .demo-row {
                max-width: 100%;
            }

            .modal-panel {
                width: min(92vw, 520px);
                margin: 16px;
            }
        }

        @media (max-width: 480px) {
            .metrics { grid-template-columns: 1fr; }
            .hero-visual { min-height: 300px; }
        }

        /* Prestige CTAs — fallback if home-future.css is cached */
        .btn-testflight,
        .hero-actions .btn-testflight {
            display: inline-block;
            background: linear-gradient(135deg, #d4af37 0%, #aa820a 100%);
            color: #002040 !important;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 30px;
            text-decoration: none !important;
            box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
            transition: all 0.3s ease;
            text-transform: uppercase;
            font-size: 0.85em;
            letter-spacing: 1px;
            border: none;
        }

        .btn-testflight:hover,
        .hero-actions .btn-testflight:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(212, 175, 55, 0.5);
            background: linear-gradient(135deg, #f3cd57 0%, #d4af37 100%);
            color: #002040 !important;
            text-decoration: none !important;
        }

        .btn-github {
            display: inline-flex;
            align-items: center;
            color: #ffffff !important;
            text-decoration: none !important;
            font-size: 0.85em;
            border: 1px solid rgba(212, 175, 55, 0.3);
            padding: 8px 18px;
            border-radius: 6px;
            background-color: rgba(212, 175, 55, 0.05);
            transition: all 0.3s ease;
        }

        .btn-github:hover {
            background-color: rgba(212, 175, 55, 0.15);
            border-color: #d4af37;
            color: #d4af37 !important;
            text-decoration: none !important;
        }

        .btn-linkedin {
            display: inline-flex;
            align-items: center;
            color: #ffffff !important;
            text-decoration: none !important;
            font-size: 0.85em;
            border: 1px solid rgba(212, 175, 55, 0.3);
            padding: 8px 18px;
            border-radius: 6px;
            background-color: rgba(212, 175, 55, 0.05);
            transition: all 0.3s ease;
        }

        .btn-linkedin:hover {
            background-color: rgba(212, 175, 55, 0.15);
            border-color: #d4af37;
            color: #d4af37 !important;
            text-decoration: none !important;
        }