/* ═══════════════════════════════════════════════════
   16RAY Site — ray16-site.css
   Brand layer on top of vis.css (VISCSS framework)
   Clean dark aesthetic, matching VISKEM family style
   ═══════════════════════════════════════════════════ */

/* ── 16RAY brand token ── */
:root {
    --ray16-container: 1100px;
}

/* ── Base ── */
.ray16-body {
    background: var(--bg-base, #181818);
    color: var(--text-body, #888);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 14px;
    font-weight: 300;
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection { background: #444; color: #fff; }

a { color: var(--text-muted, #666); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--text-primary, #ddd); }

/* ── Container ── */
.ray16-container {
    max-width: var(--ray16-container);
    margin: 0 auto;
    padding: 0 2rem;
}

/* ── Navigation ── */
.ray16-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 100;
    background: rgba(24, 24, 24, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle, #222);
}
.ray16-nav {
    max-width: var(--ray16-container);
    margin: 0 auto;
    padding: 0 2rem;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}
.ray16-nav-logo {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.08em;
}
.ray16-nav-logo:hover { color: rgba(255,255,255,0.7); }
.ray16-accent { color: var(--text-emphasis, #aaa); }

.ray16-nav-links { display: flex; gap: 2rem; }
.ray16-nav-links a {
    color: var(--text-dim, #555);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.ray16-nav-links a:hover { color: var(--text-emphasis, #aaa); }

.ray16-lang-switcher { display: flex; gap: 0.25rem; }
.ray16-lang-switcher button {
    background: none;
    border: 1px solid transparent;
    color: var(--text-dim, #555);
    font-family: var(--font-mono, monospace);
    font-size: 0.7rem;
    padding: 0.2rem 0.4rem;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.2s;
}
.ray16-lang-switcher button:hover { color: var(--text-body, #888); border-color: var(--border-subtle, #222); }
.ray16-lang-switcher .ray16-lang-active { color: var(--text-primary, #ddd); border-color: var(--border-base, #333); }

/* ── Hero ── */
.ray16-hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem 2rem;
    position: relative;
}
.ray16-hero-content { max-width: 800px; }
.ray16-hero-badge {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-dim, #555);
    margin-bottom: 1.5rem;
}
.ray16-hero-title {
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.08em;
    line-height: 1;
    margin-bottom: 1rem;
}
.ray16-hero-tagline {
    font-size: 1rem;
    font-weight: 300;
    color: var(--text-muted, #666);
    letter-spacing: 0.15em;
    margin-bottom: 3rem;
}
.ray16-hero-crt {
    width: 100%;
    max-width: 512px;
    margin: 0 auto;
    border: 1px solid var(--border-subtle, #222);
    border-radius: 3px;
    overflow: hidden;
    background: #000;
}
.ray16-hero-crt canvas { display: block; width: 100%; height: auto; }

.ray16-scroll-hint {
    position: absolute;
    bottom: 2rem;
    font-size: 0.7rem;
    color: var(--text-dim, #555);
    letter-spacing: 0.15em;
    animation: ray16Pulse 2.5s ease-in-out infinite;
}
@keyframes ray16Pulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.7; } }

/* ── Sections ── */
.ray16-section {
    padding: 5rem 0;
    border-top: 1px solid var(--border-subtle, #222);
}
.ray16-section-title {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-primary, #ddd);
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}
.ray16-section-subtitle {
    font-size: 0.85rem;
    color: var(--text-dim, #555);
    margin-bottom: 3rem;
    letter-spacing: 0.04em;
}

/* ── Fade ── */
.ray16-fade { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.ray16-fade.ray16-visible { opacity: 1; transform: translateY(0); }

/* ── Philosophy ── */
.ray16-manifesto { max-width: 720px; }
.ray16-manifesto p { margin-bottom: 1.5rem; font-size: 0.9rem; line-height: 2; }
.ray16-quote {
    font-size: 1rem;
    font-style: italic;
    color: var(--text-emphasis, #aaa);
    border-left: 2px solid var(--border-base, #333);
    padding: 0.5rem 0 0.5rem 1.5rem;
    margin-bottom: 2.5rem;
}

/* ── Product Tabs ── */
.ray16-series-tabs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2.5rem; }
.ray16-series-tab {
    background: none;
    border: 1px solid var(--border-subtle, #222);
    color: var(--text-dim, #555);
    font-family: var(--font-mono, monospace);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 0.4rem 1rem;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.2s;
}
.ray16-series-tab:hover { color: var(--text-body, #888); border-color: var(--border-base, #333); }
.ray16-series-active { color: var(--text-primary, #ddd); border-color: var(--border-strong, #444); background: var(--bg-hover, #222); }

/* ── Product Grid ── */
.ray16-product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}
.ray16-product-card {
    background: var(--bg-surface, #111);
    border: 1px solid var(--border-subtle, #222);
    border-radius: 2px;
    padding: 1.5rem;
    transition: border-color 0.2s;
}
.ray16-product-card:hover { border-color: var(--border-base, #333); }

.ray16-product-header { display: flex; align-items: baseline; gap: 0.75rem; margin-bottom: 0.25rem; }
.ray16-product-model { font-size: 0.95rem; font-weight: 500; color: var(--text-primary, #ddd); letter-spacing: 0.04em; }
.ray16-product-name { font-size: 0.75rem; color: var(--text-dim, #555); letter-spacing: 0.08em; text-transform: uppercase; }
.ray16-product-size { font-size: 0.7rem; color: var(--text-dim, #555); margin-bottom: 0.75rem; }

.ray16-product-series-badge {
    display: inline-block;
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.15rem 0.5rem;
    border-radius: 2px;
    margin-bottom: 1rem;
    color: var(--text-muted, #666);
    border: 1px solid var(--border-subtle, #222);
}
.ray16-badge-pvm { color: var(--accent-warning, #ce9178); border-color: rgba(206,145,120,0.2); }
.ray16-badge-crt { }
.ray16-badge-arc { color: var(--accent-blue, #4fc3f7); border-color: rgba(79,195,247,0.15); }
.ray16-badge-ref { color: var(--accent-red, #ef4444); border-color: rgba(239,68,68,0.15); }

.ray16-product-tagline { font-size: 0.85rem; font-style: italic; color: var(--text-emphasis, #aaa); margin-bottom: 1rem; line-height: 1.6; }
.ray16-product-desc { font-size: 0.8rem; color: var(--text-muted, #666); line-height: 1.9; margin-bottom: 1rem; }

.ray16-product-features { list-style: none; display: flex; flex-wrap: wrap; gap: 0.4rem; }
.ray16-product-features li {
    font-size: 0.65rem;
    color: var(--text-dim, #555);
    letter-spacing: 0.04em;
    padding: 0.2rem 0.6rem;
    border: 1px solid var(--border-subtle, #222);
    border-radius: 2px;
}

/* ── Compatibility ── */
.ray16-compat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; }
.ray16-compat-card { background: var(--bg-surface, #111); border: 1px solid var(--border-subtle, #222); border-radius: 2px; padding: 1.5rem; }
.ray16-compat-system { font-size: 0.9rem; font-weight: 500; color: var(--text-primary, #ddd); letter-spacing: 0.04em; margin-bottom: 0.25rem; }
.ray16-compat-resolution { font-size: 0.7rem; color: var(--text-dim, #555); letter-spacing: 0.06em; margin-bottom: 1rem; }
.ray16-compat-desc { font-size: 0.8rem; color: var(--text-body, #888); line-height: 1.8; margin-bottom: 1rem; }
.ray16-compat-models { font-size: 0.7rem; color: var(--text-muted, #666); letter-spacing: 0.04em; }

/* ── Timeline ── */
.ray16-timeline { position: relative; padding-left: 2rem; }
.ray16-timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 1px; background: var(--border-subtle, #222); }

.ray16-timeline-item { position: relative; padding-bottom: 2.5rem; }
.ray16-timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--text-dim, #555);
    transform: translateX(-2px);
}
.ray16-timeline-year { font-size: 0.75rem; font-weight: 500; color: var(--text-muted, #666); letter-spacing: 0.1em; margin-bottom: 0.25rem; }
.ray16-timeline-title { font-size: 0.9rem; color: var(--text-primary, #ddd); margin-bottom: 0.5rem; }
.ray16-timeline-desc { font-size: 0.8rem; color: var(--text-muted, #666); line-height: 1.8; }

/* ── Footer ── */
.ray16-footer { padding: 4rem 0; border-top: 1px solid var(--border-subtle, #222); text-align: center; }
.ray16-footer-brand { font-size: 1.3rem; font-weight: 600; color: #fff; letter-spacing: 0.08em; margin-bottom: 0.5rem; }
.ray16-footer-tagline { font-size: 0.75rem; color: var(--text-dim, #555); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 1.5rem; }
.ray16-footer-links { display: flex; justify-content: center; gap: 1.5rem; margin-bottom: 2rem; }
.ray16-footer-links a { font-size: 0.75rem; color: var(--text-dim, #555); letter-spacing: 0.05em; }
.ray16-footer-links a:hover { color: var(--text-emphasis, #aaa); }
.ray16-footer-copy { font-size: 0.65rem; color: var(--text-dim, #555); letter-spacing: 0.04em; }

/* ── Responsive ── */
@media (max-width: 768px) {
    .ray16-nav-links { display: none; }
    .ray16-hero-title { font-size: clamp(3rem, 15vw, 5rem); }
    .ray16-product-grid { grid-template-columns: 1fr; }
    .ray16-compat-grid { grid-template-columns: 1fr; }
    .ray16-series-tabs { gap: 0.3rem; }
    .ray16-series-tab { font-size: 0.65rem; padding: 0.3rem 0.6rem; }
    .ray16-section { padding: 4rem 0; }
}
@media (max-width: 480px) {
    .ray16-container { padding: 0 1rem; }
    .ray16-hero { padding: 5rem 1rem 2rem; }
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
    .ray16-scroll-hint { animation: none; opacity: 0.5; }
    .ray16-fade { opacity: 1; transform: none; transition: none; }
}