/* macmpv site — dark glass, matching the player's aesthetic. */

:root {
    --bg: #05070c;
    --bg-raise: rgba(255, 255, 255, 0.04);
    --border: rgba(255, 255, 255, 0.09);
    --border-strong: rgba(255, 255, 255, 0.16);
    --text: #e8ecf4;
    --text-dim: rgba(232, 236, 244, 0.62);
    --text-faint: rgba(232, 236, 244, 0.4);
    /* Monochrome palette: accents are shades of white and gray only. */
    --accent-a: #f4f6fb;
    --accent-b: #9aa3b5;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    --radius: 18px;
    --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
        "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;
    --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: var(--accent-b); text-decoration: none; }
a:hover { color: #ffffff; text-decoration: underline; }

code {
    font-family: var(--mono);
    font-size: 0.85em;
    background: var(--bg-raise);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 0.1em 0.45em;
}

/* ---- Ambient backdrop ---- */

.backdrop {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.5;
}

.glow-a {
    width: 640px;
    height: 640px;
    top: -260px;
    left: 50%;
    transform: translateX(-70%);
    background: radial-gradient(circle, rgba(255, 255, 255, 0.14), transparent 65%);
}

.glow-b {
    width: 520px;
    height: 520px;
    top: -160px;
    left: 50%;
    transform: translateX(10%);
    background: radial-gradient(circle, rgba(255, 255, 255, 0.07), transparent 65%);
}

/* ---- Nav ---- */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px clamp(20px, 5vw, 48px);
    background: rgba(5, 7, 12, 0.55);
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    border-bottom: 1px solid var(--border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 700;
    font-size: 17px;
    letter-spacing: -0.01em;
}

.brand:hover { text-decoration: none; }

.brand-mark {
    width: 26px;
    height: 26px;
    color: var(--accent-b);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(14px, 3vw, 28px);
    font-size: 14.5px;
    font-weight: 500;
}

.nav-links a { color: var(--text-dim); }
.nav-links a:hover { color: var(--text); text-decoration: none; }

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    background: var(--bg-raise);
    color: var(--text) !important;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.github-link:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.28);
}

/* ---- Layout ---- */

main {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 clamp(20px, 5vw, 48px);
}

.section { padding: clamp(64px, 9vw, 110px) 0 0; }

.section-title {
    margin: 0;
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 700;
    letter-spacing: -0.02em;
    text-align: center;
}

.section-sub {
    margin: 10px 0 0;
    text-align: center;
    color: var(--text-dim);
    font-size: 16.5px;
}

/* ---- Hero ---- */

.hero {
    padding: clamp(96px, 12vw, 140px) 0 0;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg-raise);
    color: var(--text-dim);
    font-size: 13px;
    font-weight: 600;
}

.hero h1 {
    margin: 22px 0 0;
    font-size: clamp(38px, 7vw, 68px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.08;
    background: linear-gradient(120deg, #ffffff 30%, var(--accent-a) 70%, var(--accent-b));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    max-width: 640px;
    margin: 22px auto 0;
    color: var(--text-dim);
    font-size: clamp(16px, 2.2vw, 19px);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 34px;
}

.hero-note {
    margin-top: 18px;
    color: var(--text-faint);
    font-size: 13.5px;
}

/* ---- Buttons ---- */

.button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 26px;
    border: none;
    border-radius: 14px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 650;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover { text-decoration: none; transform: translateY(-1px); }
.button:active { transform: translateY(0); }

.button-primary {
    color: #0a0d16;
    background: linear-gradient(150deg, #ffffff, #dfe4ff);
    box-shadow: 0 10px 30px rgba(124, 124, 244, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.button-primary:hover {
    box-shadow: 0 14px 38px rgba(124, 124, 244, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.button-ghost {
    color: var(--text);
    border: 1px solid var(--border-strong);
    background: var(--bg-raise);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.button-ghost:hover { background: rgba(255, 255, 255, 0.09); }

/* ---- Download build picker ---- */

.download-menu {
    position: relative;
    display: inline-flex;
}

.download-menu .chevron {
    transition: transform 0.2s ease;
}

.download-menu.open .chevron {
    transform: rotate(180deg);
}

.download-options {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    min-width: 300px;
    display: grid;
    gap: 6px;
    padding: 8px;
    border: 1px solid var(--border-strong);
    border-radius: 16px;
    background: rgba(10, 13, 22, 0.88);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
    z-index: 20;
}

.download-menu.open .download-options {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.download-options a {
    display: grid;
    gap: 3px;
    padding: 10px 14px;
    border-radius: 11px;
    color: var(--text);
    text-decoration: none;
    transition: background 0.15s ease;
}

.download-options a:hover,
.download-options a:focus-visible {
    background: rgba(255, 255, 255, 0.08);
    text-decoration: none;
    outline: none;
}

.option-name {
    font-size: 14.5px;
    font-weight: 650;
}

.option-meta {
    font-size: 12px;
    color: var(--text-dim);
}

.button-sub {
    display: block;
    font-size: 11px;
    font-weight: 500;
    opacity: 0.65;
}

/* ---- Hero screenshot ---- */

.hero-shot {
    margin: clamp(44px, 7vw, 70px) 0 0;
}

/* Rounded frame, square screenshot: the radius must equal the padding so the
 * rounded border meets the image's square corners exactly — no clipping, no
 * corners poking past the curve. */
.shot-frame {
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
}

.shot-frame img {
    display: block;
    width: 100%;
    height: auto;
}

.hero-shot figcaption {
    margin-top: 16px;
    color: var(--text-faint);
    font-size: 13.5px;
}

/* ---- Features ---- */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-top: 44px;
}

.feature {
    padding: 24px 22px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.02));
    transition: border-color 0.25s ease, transform 0.25s ease;
}

.feature:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
}

.feature-icon {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    margin-bottom: 14px;
    border-radius: 12px;
    color: #dfe4ee;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.14);
}

.feature-icon svg { width: 22px; height: 22px; }

.feature h3 {
    margin: 0 0 6px;
    font-size: 16.5px;
    font-weight: 650;
    letter-spacing: -0.01em;
}

.feature p {
    margin: 0;
    color: var(--text-dim);
    font-size: 14.5px;
}

/* ---- Download ---- */

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 44px;
}

.step {
    display: flex;
    gap: 14px;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-raise);
}

.step-number {
    flex: none;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
    color: #0a0d16;
    background: linear-gradient(150deg, #ffffff, #cfd6ff);
}

.step h3 { margin: 3px 0 4px; font-size: 15.5px; }
.step p { margin: 0; color: var(--text-dim); font-size: 14px; }

.callout {
    margin-top: 18px;
    padding: 22px 24px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.05);
}

.callout h3 {
    margin: 0 0 8px;
    font-size: 15px;
    font-weight: 650;
    color: #ffffff;
}

.callout p { margin: 0 0 12px; color: var(--text-dim); font-size: 14.5px; }

.callout pre {
    margin: 0;
    padding: 12px 16px;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.35);
}

.callout code {
    background: none;
    border: none;
    padding: 0;
    font-size: 13px;
    color: #c9d1e0;
}

.download-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 22px;
    margin-top: 34px;
    padding: 26px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-raise);
}

.checksum {
    font-size: 12.5px;
    color: var(--text-faint);
    white-space: nowrap;
}

.checksum-label {
    display: block;
    font-weight: 700;
    letter-spacing: 0.08em;
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 3px;
}

.variant-note {
    margin: 14px auto 0;
    max-width: 640px;
    text-align: center;
    color: var(--text-dim);
    font-size: 14.5px;
}

/* ---- FAQ ---- */

.faq-list {
    max-width: 720px;
    margin: 40px auto 0;
    display: grid;
    gap: 12px;
}

.faq-list details {
    border: 1px solid var(--border);
    border-radius: 14px;
    background: var(--bg-raise);
    overflow: hidden;
}

.faq-list summary {
    cursor: pointer;
    list-style: none;
    padding: 16px 20px;
    font-weight: 600;
    font-size: 15px;
    transition: background 0.2s ease;
}

.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before { content: "+ "; color: var(--accent-b); }
.faq-list details[open] summary::before { content: "− "; }
.faq-list summary:hover { background: rgba(255, 255, 255, 0.05); }

.faq-list details p {
    margin: 0;
    padding: 0 20px 18px;
    color: var(--text-dim);
    font-size: 14.5px;
}

/* ---- Footer ---- */

.footer {
    margin-top: clamp(80px, 10vw, 130px);
    padding: 34px clamp(20px, 5vw, 48px) 40px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-faint);
    font-size: 13.5px;
}

.footer p { margin: 6px 0; }
.footer a { color: var(--text-dim); }
.footer a:hover { color: var(--text); }

/* ---- Reveal on scroll (progressive enhancement) ---- */

.js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.js .reveal.revealed {
    opacity: 1;
    transform: none;
}

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

/* ---- Small screens ---- */

@media (max-width: 620px) {
    .nav-links a:not(.github-link) { display: none; }
    .download-meta { flex-direction: column; }
    /* A full hash cannot fit one line this narrow; wrap it cleanly instead. */
    .checksum {
        white-space: normal;
        word-break: break-all;
    }
    /* Thinner screenshot frame; radius stays equal to padding so the rounded
       border still meets the square image corners exactly. */
    .shot-frame {
        padding: 6px;
        border-radius: 6px;
    }
}