/* ── Theme tokens (RGB triplets so Tailwind opacity modifiers work) ── */
        :root,
        :root[data-theme="light"] {
            color-scheme: light;
            /* Warm off-white / beige. Nothing is pure white: the brightest
               surface sits at ~92% luminance instead of ~99%. */
            --c-canvas: 242 238 229;
            --c-canvas-2: 232 226 214;
            --c-surface: 249 246 238;
            --c-ink: 31 28 23;
            --c-body: 74 68 59;
            --c-muted: 107 99 88;
            --c-line: 222 214 200;
            --c-line-strong: 199 188 167;
            --c-hover: 236 231 220;
            --c-accent: 137 108 34;
            --c-accent-deep: 111 86 24;
            --c-on-accent: 249 246 238;
            --c-brass: 113 99 66;
            --shadow-card: 0 1px 2px rgba(46, 38, 26, 0.05), 0 8px 24px rgba(46, 38, 26, 0.05);
            --shadow-card-hover: 0 2px 4px rgba(46, 38, 26, 0.06), 0 18px 40px rgba(46, 38, 26, 0.12);
        }

        :root[data-theme="dark"] {
            color-scheme: dark;
            --c-canvas: 20 18 15;
            --c-canvas-2: 28 25 22;
            --c-surface: 32 28 24;
            --c-ink: 242 237 229;
            --c-body: 184 176 164;
            --c-muted: 138 129 117;
            --c-line: 50 44 38;
            --c-line-strong: 68 60 51;
            --c-hover: 40 35 30;
            --c-accent: 207 176 92;
            --c-accent-deep: 225 196 116;
            --c-on-accent: 20 18 15;
            --c-brass: 176 154 109;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.30), 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 2px 4px rgba(0, 0, 0, 0.35), 0 18px 40px rgba(0, 0, 0, 0.50);
        }

        html { scroll-behavior: smooth; }

        body {
            background-color: rgb(var(--c-canvas));
            color: rgb(var(--c-body));
            font-family: 'Inter', system-ui, sans-serif;
            font-size: 1rem;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        ::selection { background: rgb(var(--c-accent) / 0.2); color: rgb(var(--c-ink)); }

        /* ── Eyebrow label ── */
        .eyebrow {
            font-size: 0.68rem;
            font-weight: 600;
            letter-spacing: 0.16em;
            text-transform: uppercase;
            color: rgb(var(--c-brass));
        }

        /* ── Card ── */
        .card {
            background: rgb(var(--c-surface));
            border: 1px solid rgb(var(--c-line));
            border-radius: 10px;
            box-shadow: var(--shadow-card);
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease, background 0.3s ease;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            border-color: rgb(var(--c-line-strong));
            box-shadow: var(--shadow-card-hover);
        }

        /* ── Chips ── */
        .chip {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 500;
            letter-spacing: 0.01em;
            color: rgb(var(--c-body));
            background: rgb(var(--c-hover));
            border: 1px solid rgb(var(--c-line));
            border-radius: 9999px;
            padding: 0.2rem 0.65rem;
            white-space: nowrap;
        }

        /* ── Buttons ── */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            padding: 0.6rem 1.15rem;
            border-radius: 6px;
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
        }
        .btn:active { transform: translateY(1px); }
        .btn-primary {
            background: rgb(var(--c-accent));
            color: rgb(var(--c-on-accent));
            border: 1px solid rgb(var(--c-accent));
        }
        .btn-primary:hover { background: rgb(var(--c-accent-deep)); border-color: rgb(var(--c-accent-deep)); }
        .btn-outline {
            background: transparent;
            color: rgb(var(--c-ink));
            border: 1px solid rgb(var(--c-line-strong));
        }
        .btn-outline:hover { background: rgb(var(--c-hover)); border-color: rgb(var(--c-muted)); }
        .btn .arrow { transition: transform 0.2s ease; }
        .btn:hover .arrow { transform: translateX(3px); }

        /* ── Section rule ── */
        .rule {
            height: 1px;
            background: linear-gradient(90deg, rgb(var(--c-line-strong)), rgb(var(--c-line-strong) / 0));
        }

        /* ── Nav ── */
        .nav-link {
            position: relative;
            font-size: 0.82rem;
            font-weight: 500;
            color: rgb(var(--c-muted));
            transition: color 0.2s ease;
        }
        .nav-link:hover { color: rgb(var(--c-ink)); }
        .nav-link.active { color: rgb(var(--c-accent)); }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0; right: 0; bottom: -0.45rem;
            height: 2px;
            border-radius: 2px;
            background: rgb(var(--c-accent));
        }

        /* ── Theme toggle ── */
        .theme-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px; height: 34px;
            border-radius: 8px;
            border: 1px solid rgb(var(--c-line));
            background: transparent;
            color: rgb(var(--c-muted));
            cursor: pointer;
            transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
        }
        .theme-btn:hover {
            color: rgb(var(--c-ink));
            background: rgb(var(--c-hover));
            border-color: rgb(var(--c-line-strong));
        }
        .theme-btn .moon { display: none; }
        :root[data-theme="dark"] .theme-btn .sun { display: none; }
        :root[data-theme="dark"] .theme-btn .moon { display: block; }

        /* ── Scroll reveal ── */
        .reveal {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .reveal.in { opacity: 1; transform: none; }

        /* ── Back to top ── */
        .to-top {
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease, transform 0.2s ease, background 0.2s ease;
        }
        .to-top.show { opacity: 1; pointer-events: auto; }
        .to-top:hover { transform: translateY(-3px); }

        @media (prefers-reduced-motion: reduce) {
            html { scroll-behavior: auto; }
            .reveal { opacity: 1; transform: none; transition: none; }
            .card-hover:hover { transform: none; }
        }

        /* ── Carousels ── */
        .card-scroll, .card-hscroll, .card-vscroll { scrollbar-width: none; }
        .card-scroll::-webkit-scrollbar,
        .card-hscroll::-webkit-scrollbar,
        .card-vscroll::-webkit-scrollbar { display: none; }

        .card-dots {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-top: 1rem;
        }
        .carousel-controls {
            display: grid;
            grid-template-columns: 44px minmax(0, 1fr) 44px;
            align-items: center;
            gap: 12px;
            margin-top: 16px;
        }
        .carousel-controls[hidden] { display: none; }
        .carousel-controls .card-dots { margin-top: 0; }
        .carousel-arrow {
            width: 44px; height: 44px;
            border: 1px solid rgb(var(--c-line-strong));
            border-radius: 50%;
            background: rgb(var(--c-surface));
            color: rgb(var(--c-ink));
            font-size: 22px;
            cursor: pointer;
        }
        .carousel-arrow:hover:not(:disabled) { background: rgb(var(--c-hover)); }
        .carousel-arrow:disabled { opacity: 0.35; cursor: default; }
        .carousel-arrow:focus-visible, .card-dot:focus-visible,
        .card-scroll:focus-visible, .card-hscroll:focus-visible {
            outline: 2px solid rgb(var(--c-accent)); outline-offset: 3px;
        }
        .card-scroll.is-dragging, .card-hscroll.is-dragging {
            scroll-snap-type: none; cursor: grabbing; user-select: none;
        }

        .card-dot {
            width: 7px; height: 7px; padding: 0;
            border-radius: 9999px;
            background: rgb(var(--c-line-strong));
            border: none;
            cursor: pointer;
            transition: background 0.2s ease, transform 0.2s ease;
        }
        .card-dot:hover { background: rgb(var(--c-muted)); }
        .card-dot.active { background: rgb(var(--c-accent)); transform: scale(1.45); }

        .card-scrollbar-v {
            position: absolute; top: 0; right: 0;
            width: 5px; height: 100%;
            background: rgb(var(--c-hover));
            border-radius: 9999px;
        }
        .card-scrollbar-thumb {
            position: absolute; top: 0; left: 0;
            width: 100%; min-height: 24px;
            background: rgb(var(--c-line-strong));
            border-radius: 9999px;
            cursor: grab;
        }
        .card-scrollbar-thumb.dragging { background: rgb(var(--c-accent)); cursor: grabbing; }

        /* ── Toast ── */
        #mobile-warning {
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
        }
        #mobile-warning.show { opacity: 1; visibility: visible; transform: translateY(0); }

        @media (max-width: 767px) {
            .card-scroll .media { height: 30vh; max-height: 200px; }
        }

/* Answer fields follow the current theme. */
.answer-input {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid rgb(var(--c-line));
    border-radius: 6px;
    background: rgb(var(--c-surface));
    color: rgb(var(--c-ink));
    font: inherit;
    resize: vertical;
    min-height: 9rem;
}
.answer-input::placeholder { color: rgb(var(--c-muted)); }
.answer-input:focus-visible {
    outline: 2px solid rgb(var(--c-accent));
    outline-offset: 3px;
}

/* Explore stays out of navigation until its launch flag is enabled. */
html:not([data-explore-enabled="true"]) a[href="explore.html"] { display: none; }
.question-card { border-top: 3px solid rgb(var(--c-accent)); }
.question-card h2 { min-height: 6rem; }
.question-card form { margin-top: auto; padding-top: 1.5rem; }
.question-number {
    font-family: 'Fraunces', Georgia, serif;
    font-size: 1.75rem;
    color: rgb(var(--c-accent));
    opacity: 0.65;
}
.explore-answer button:disabled { opacity: 0.65; cursor: wait; }
.answer-status { min-height: 1.25rem; }
@media (max-width: 767px) {
    .question-card h2 { min-height: 0; }
}

/* Home follows a single column of full-width panels. */
.steam-games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr));
    gap: 0.75rem;
}
.steam-games-grid > a { width: 100%; min-width: 0; }
.home-layout .eyebrow { overflow-wrap: anywhere; }
@media (max-width: 479px) {
    .home-layout .grid-cols-3 .eyebrow {
        font-size: 0.56rem;
        letter-spacing: 0.07em;
    }
}

[data-project-category][hidden] { display: none !important; }
.project-filters .btn:focus-visible { outline: 2px solid rgb(var(--c-accent)); outline-offset: 3px; }