@layer reset, tokens, base, components, utilities;

/* ——— Reset ——— */
@layer reset {
    *, *::before, *::after { box-sizing: border-box; }
    html { -webkit-text-size-adjust: 100%; }
    body, h1, h2, h3, p, ul, figure { margin: 0; }
    ul[role="list"] { list-style: none; padding: 0; }
    img, video { max-width: 100%; display: block; }
    button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
    a { color: inherit; }
}

/* ——— Tokens ——— */
@layer tokens {
    :root {
        --color-bg: #0a0a0b;
        --color-bg-elevated: #121214;
        --color-bg-card: #18181b;
        --color-border: rgba(255, 255, 255, 0.08);
        --color-text: #f2efe8;
        --color-text-muted: rgba(242, 239, 232, 0.62);
        --color-text-subtle: rgba(242, 239, 232, 0.42);

        --color-accent: #c9a962;
        --color-accent-soft: rgba(201, 169, 98, 0.22);
        --color-accent-glow: rgba(201, 169, 98, 0.35);

        --font-display: "Cormorant Garamond", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
        --font-ui: "Manrope", "Segoe UI", system-ui, sans-serif;

        --text-xs: clamp(0.72rem, 0.68rem + 0.2vw, 0.8rem);
        --text-sm: clamp(0.82rem, 0.78rem + 0.25vw, 0.92rem);
        --text-md: clamp(0.95rem, 0.9rem + 0.3vw, 1.05rem);
        --text-lg: clamp(1.15rem, 1rem + 0.6vw, 1.35rem);
        --text-display: clamp(2.4rem, 1.6rem + 3.5vw, 4.2rem);

        --space-1: 0.25rem;
        --space-2: 0.5rem;
        --space-3: 0.75rem;
        --space-4: 1rem;
        --space-6: 1.5rem;
        --space-8: 2rem;
        --space-12: 3rem;
        --space-16: 4rem;

        --radius-sm: 0.35rem;
        --radius-md: 0.65rem;
        --radius-lg: 1rem;
        --radius-full: 999px;

        --ease-out-soft: cubic-bezier(0.2, 0.8, 0.2, 1);
        --duration-fast: 400ms;
        --duration-med: 600ms;
        --duration-slow: 800ms;

        --focus-ring: 0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-accent);

        --ambient: #3d2e24;
        --poster-ratio: 2 / 3;
    }
}

/* ——— Base ——— */
@layer base {
    body {
        min-height: 100dvh;
        font-family: var(--font-ui);
        font-size: var(--text-md);
        line-height: 1.55;
        color: var(--color-text);
        background: var(--color-bg);
        overflow-x: hidden;
    }

    ::selection {
        background: var(--color-accent-soft);
        color: var(--color-text);
    }

    :focus-visible {
        outline: none;
        box-shadow: var(--focus-ring);
    }

    .skip-link {
        position: absolute;
        left: var(--space-4);
        top: -100%;
        z-index: 100;
        padding: var(--space-2) var(--space-4);
        background: var(--color-bg-elevated);
        border-radius: var(--radius-sm);
        transition: top var(--duration-fast) var(--ease-out-soft);
    }

    .skip-link:focus {
        top: var(--space-4);
    }

    .site-main {
        position: relative;
        z-index: 1;
        padding: var(--space-8) var(--space-6) var(--space-16);
        max-width: 120rem;
        margin-inline: auto;
    }

    .eyebrow {
        font-size: var(--text-xs);
        letter-spacing: 0.22em;
        text-transform: uppercase;
        color: var(--color-accent);
        margin-bottom: var(--space-3);
    }

    .display-title {
        font-family: var(--font-display);
        font-size: var(--text-display);
        font-weight: 600;
        line-height: 1.05;
        letter-spacing: -0.02em;
        text-wrap: balance;
    }

    .section-title {
        font-family: var(--font-ui);
        font-size: var(--text-sm);
        font-weight: 500;
        letter-spacing: 0.12em;
        text-transform: uppercase;
        color: var(--color-text-muted);
        margin-bottom: var(--space-4);
    }

    .lede {
        max-width: 42ch;
        color: var(--color-text-muted);
        margin-top: var(--space-4);
        font-size: var(--text-lg);
    }

    .ui-copy {
        color: var(--color-text-muted);
        max-width: 50ch;
    }

    .text-link {
        color: var(--color-accent);
        text-decoration: none;
        border-bottom: 1px solid transparent;
        transition: border-color var(--duration-fast) var(--ease-out-soft);
    }

    .text-link:hover {
        border-color: var(--color-accent-soft);
    }
}

/* ——— Components ——— */
@layer components {
    .ambient-glow {
        position: fixed;
        inset: -20%;
        z-index: 0;
        pointer-events: none;
        background:
            radial-gradient(ellipse 55% 45% at 50% 18%, color-mix(in srgb, var(--ambient) 55%, transparent), transparent 70%),
            radial-gradient(ellipse 80% 60% at 80% 90%, rgba(201, 169, 98, 0.06), transparent 65%);
        filter: blur(48px);
        opacity: 0.9;
        transition: background var(--duration-slow) var(--ease-out-soft);
    }

    .film-grain {
        position: fixed;
        inset: 0;
        z-index: 2;
        pointer-events: none;
        opacity: 0.035;
        background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
        mix-blend-mode: soft-light;
        animation: grain-shift 8s steps(6) infinite;
    }

    @keyframes grain-shift {
        0%, 100% { transform: translate(0, 0); }
        20% { transform: translate(-2%, 1%); }
        40% { transform: translate(1%, -2%); }
        60% { transform: translate(2%, 2%); }
        80% { transform: translate(-1%, -1%); }
    }

    .demo-banner {
        position: relative;
        z-index: 5;
        text-align: center;
        font-size: var(--text-xs);
        letter-spacing: 0.04em;
        padding: var(--space-2) var(--space-4);
        background: rgba(201, 169, 98, 0.12);
        border-bottom: 1px solid var(--color-border);
        color: var(--color-text-muted);
    }

    /* Profils */
    .profiles-screen {
        min-height: calc(100dvh - 8rem);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        gap: var(--space-12);
    }

    .profile-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-8);
    }

    .profile-card {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--space-4);
        padding: var(--space-2);
        border-radius: var(--radius-md);
        transition: transform var(--duration-med) var(--ease-out-soft);
    }

    .profile-card:not(:disabled):hover {
        transform: translateY(-4px) scale(1.03);
    }

    .profile-card:not(:disabled):hover .profile-card__avatar {
        box-shadow: 0 0 0 3px var(--color-accent-soft), 0 20px 40px rgba(0, 0, 0, 0.45);
    }

    .profile-card__avatar {
        width: clamp(5rem, 4rem + 4vw, 7rem);
        aspect-ratio: 1;
        border-radius: var(--radius-full);
        border: 2px solid var(--color-border);
        transition: box-shadow var(--duration-med) var(--ease-out-soft);
    }

    .profile-card__avatar--aurora {
        background: radial-gradient(circle at 30% 25%, hsl(var(--profile-hue, 42) 55% 72%), hsl(calc(var(--profile-hue, 42) + 40) 40% 35%));
    }

    .profile-card__avatar--ember {
        background: radial-gradient(circle at 30% 25%, hsl(var(--profile-hue, 28) 70% 65%), hsl(calc(var(--profile-hue, 28) + 15) 45% 28%));
    }

    .profile-card__avatar--noir {
        background: radial-gradient(circle at 30% 25%, hsl(var(--profile-hue, 220) 25% 55%), hsl(var(--profile-hue, 220) 30% 18%));
    }

    .profile-card__avatar--add {
        display: grid;
        place-items: center;
        font-size: 2rem;
        color: var(--color-text-subtle);
        background: var(--color-bg-elevated);
    }

    .profile-card__avatar--add::before {
        content: "+";
    }

    .profile-card--add {
        opacity: 0.45;
        cursor: not-allowed;
    }

    .profile-card__name {
        font-size: var(--text-md);
        color: var(--color-text-muted);
    }

    .profiles-screen__footnote {
        font-size: var(--text-sm);
    }

    /* Boutons */
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: var(--space-2);
        padding: 0.75rem 1.35rem;
        border-radius: var(--radius-full);
        font-size: var(--text-sm);
        font-weight: 500;
        letter-spacing: 0.02em;
        transition:
            background var(--duration-fast) var(--ease-out-soft),
            color var(--duration-fast) var(--ease-out-soft),
            transform var(--duration-fast) var(--ease-out-soft);
    }

    .btn--primary {
        background: var(--color-accent);
        color: #1a1508;
    }

    .btn--primary:hover {
        transform: translateY(-1px);
        filter: brightness(1.05);
    }

    .btn--ghost {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid var(--color-border);
        color: var(--color-text);
    }

    .btn--ghost:hover {
        background: rgba(255, 255, 255, 0.1);
    }

    .btn--icon {
        width: 2.75rem;
        height: 2.75rem;
        padding: 0;
        border-radius: var(--radius-full);
    }

    .button-row {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    /* Rangée & cartes */
    .row-scroll {
        display: flex;
        gap: var(--space-4);
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding-bottom: var(--space-2);
        scrollbar-width: thin;
        scrollbar-color: var(--color-border) transparent;
    }

    .row-scroll--demo {
        max-width: 52rem;
    }

    .title-card {
        flex: 0 0 auto;
        width: clamp(9rem, 8rem + 4vw, 11rem);
        scroll-snap-align: start;
        transition: transform var(--duration-med) var(--ease-out-soft);
    }

    .title-card:hover {
        transform: scale(1.06);
        z-index: 2;
    }

    .title-card__poster {
        aspect-ratio: var(--poster-ratio);
        border-radius: var(--radius-md);
        overflow: hidden;
        position: relative;
        background: var(--color-bg-card);
        background-image: linear-gradient(to top, rgba(0, 0, 0, 0.55), transparent 50%);
        background-blend-mode: multiply;
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    }

    .title-card__quality {
        position: absolute;
        left: var(--space-2);
        bottom: var(--space-2);
        font-size: var(--text-xs);
        padding: 0.15rem 0.45rem;
        border-radius: var(--radius-sm);
        background: rgba(0, 0, 0, 0.55);
        backdrop-filter: blur(6px);
        opacity: 0;
        transform: translateY(4px);
        transition: opacity var(--duration-fast) var(--ease-out-soft), transform var(--duration-fast) var(--ease-out-soft);
    }

    .title-card:hover .title-card__quality {
        opacity: 1;
        transform: translateY(0);
    }

    .title-card__meta {
        margin-top: var(--space-3);
    }

    .title-card__title {
        font-size: var(--text-sm);
        font-weight: 500;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .title-card__details {
        font-size: var(--text-xs);
        color: var(--color-text-subtle);
        margin-top: var(--space-1);
        opacity: 0;
        transition: opacity var(--duration-fast) var(--ease-out-soft);
    }

    .title-card:hover .title-card__details {
        opacity: 1;
    }

    /* Skeleton */
    .skeleton {
        background: linear-gradient(
            90deg,
            var(--color-bg-card) 0%,
            rgba(255, 255, 255, 0.06) 50%,
            var(--color-bg-card) 100%
        );
        background-size: 200% 100%;
        animation: skeleton-shimmer 1.4s ease-in-out infinite;
        border-radius: var(--radius-sm);
    }

    .skeleton--poster {
        aspect-ratio: var(--poster-ratio);
        border-radius: var(--radius-md);
    }

    .skeleton--line {
        height: 0.75rem;
        margin-top: var(--space-3);
        width: 70%;
    }

    @keyframes skeleton-shimmer {
        0% { background-position: 100% 0; }
        100% { background-position: -100% 0; }
    }

    /* Pages design / erreur */
    .design-page,
    .error-page {
        max-width: 52rem;
    }

    .design-section {
        margin-top: var(--space-12);
        padding-top: var(--space-8);
        border-top: 1px solid var(--color-border);
    }

    .display-title--sample {
        font-size: clamp(2rem, 1.5rem + 2vw, 3rem);
        margin-bottom: var(--space-4);
    }

    .design-page__back {
        margin-top: var(--space-12);
    }

    .error-page {
        min-height: 60dvh;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: var(--space-6);
    }
}

/* ——— Utilities ——— */
@layer utilities {
    @media (prefers-reduced-motion: reduce) {
        *, *::before, *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }

        .film-grain {
            animation: none;
        }
    }

    @media (min-width: 64rem) {
        .site-main {
            padding-inline: var(--space-12);
        }
    }
}