/* ================================================================
   VoxCraft Release Notes Page
   Dark editorial theme · Figtree + Cormorant · oklch palette
   Matches landing.css / features.css design language
   ================================================================ */

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --ff: "Figtree", system-ui, sans-serif;
    --ff-display: "Cormorant", Georgia, serif;

    --bg-deep:   oklch(0.08 0.012 280);
    --bg-dark:   oklch(0.1 0.012 280);
    --bg:        oklch(0.17 0.01 280);
    --bg-light:  oklch(0.22 0.008 280);
    --bg-card:   oklch(0.14 0.01 280);

    --primary:     oklch(0.66 0.2 262.83);
    --primary-dim: oklch(0.52 0.29 261.59);
    --secondary:   oklch(0.64 0.23 300.93);

    --text:       oklch(0.93 0.008 80);
    --text-muted: oklch(0.58 0.015 270);
    --text-dim:   oklch(0.42 0.012 270);

    --glow: oklch(0.66 0.2 262.83 / 0.15);

    --transition: 0.25s ease;
    --radius: 12px;
    --radius-sm: 8px;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--ff);
    font-size: 16px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg-deep);
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

/* --- Utility --- */
.section-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Reveal animations --- */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ================================================================
   HEADER (duplicated from landing — no shared CSS file)
   ================================================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: oklch(0.08 0.012 280 / 0.85);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border-bottom: 1px solid oklch(1 0 0 / 0.06);
}

.header-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
}
.logo-icon {
    color: var(--primary);
    margin-bottom: 5px;
}
.logo-text { color: var(--text); }

.main-nav {
    display: flex;
    gap: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}
.main-nav a {
    transition: color var(--transition);
    position: relative;
}
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary);
    transition: width var(--transition);
}
.main-nav a:hover { color: var(--text); }
.main-nav a:hover::after { width: 100%; }

.header-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

/* --- Buttons --- */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.4rem;
    font-family: var(--ff);
    font-size: 0.875rem;
    font-weight: 600;
    color: #fff;
    background: var(--primary-dim);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition), transform 0.15s ease, box-shadow var(--transition);
    white-space: nowrap;
}
.btn-primary:hover {
    background: var(--primary);
    box-shadow: 0 0 24px var(--glow);
    transform: translateY(-1px);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.4rem;
    font-family: var(--ff);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid oklch(1 0 0 / 0.1);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: color var(--transition), border-color var(--transition), background var(--transition);
    white-space: nowrap;
}
.btn-ghost:hover {
    color: var(--text);
    border-color: oklch(1 0 0 / 0.2);
    background: oklch(1 0 0 / 0.04);
}

.btn-sm { padding: 0.45rem 1rem; font-size: 0.8125rem; }

/* --- Mobile toggle --- */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-muted);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
    display: none;
    padding: 1rem 1.5rem 1.5rem;
}
.mobile-menu.open { display: block; }

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}
.mobile-nav > a {
    display: block;
    padding: 0.75rem 0;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-muted);
    border-bottom: 1px solid oklch(1 0 0 / 0.06);
    transition: color var(--transition);
}
.mobile-nav > a:hover { color: var(--text); }

.mobile-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    padding-top: 0.5rem;
}
.mobile-actions .btn-ghost,
.mobile-actions .btn-primary { flex: 1; justify-content: center; }

/* --- Section shared --- */
.section-eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

/* ================================================================
   HERO (compact, matches features page pattern)
   ================================================================ */
.rn-hero {
    position: relative;
    padding: 8rem 1.5rem 3rem;
    text-align: center;
    overflow: hidden;
}

.rn-hero .hero-glow {
    position: absolute;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 500px;
    background: radial-gradient(ellipse, oklch(0.52 0.29 261.59 / 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.rn-hero .hero-grid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(oklch(1 0 0 / 0.04) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
    -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
    pointer-events: none;
}

.rn-hero-content {
    position: relative;
    max-width: 640px;
    margin: 0 auto;
}

.rn-hero-title {
    font-family: var(--ff-display);
    font-size: clamp(2.25rem, 5vw, 3.25rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 1rem;
}
.rn-hero-title em {
    font-style: italic;
    color: var(--primary);
}

.rn-hero-subtitle {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
    max-width: 480px;
    margin: 0 auto;
}

/* ================================================================
   RELEASE LIST
   ================================================================ */
.rn-list {
    padding: 3rem 0 5rem;
}

.rn-loading {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.875rem;
}

.rn-entry {
    position: relative;
    padding: 2rem;
    margin-bottom: 1.5rem;
    background: var(--bg-card);
    border: 1px solid oklch(1 0 0 / 0.06);
    border-radius: var(--radius);
    transition: border-color var(--transition);
}
.rn-entry:hover {
    border-color: oklch(1 0 0 / 0.1);
}

.rn-entry:first-child {
    border-color: oklch(0.66 0.2 262.83 / 0.25);
}
.rn-entry:first-child:hover {
    border-color: oklch(0.66 0.2 262.83 / 0.4);
}

.rn-entry-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.rn-version {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-family: var(--ff);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary);
    background: oklch(0.52 0.29 261.59 / 0.1);
    border: 1px solid oklch(0.52 0.29 261.59 / 0.2);
    border-radius: 100px;
    letter-spacing: 0.01em;
}

.rn-entry:first-child .rn-version {
    background: oklch(0.52 0.29 261.59 / 0.15);
    border-color: oklch(0.52 0.29 261.59 / 0.3);
}

.rn-date {
    font-size: 0.8125rem;
    color: var(--text-dim);
}

.rn-latest {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    opacity: 0.8;
}

.rn-body {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--text-muted);
}

.rn-body h3 {
    font-family: var(--ff);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text);
    margin: 1.25rem 0 0.5rem;
}
.rn-body h3:first-child {
    margin-top: 0;
}

.rn-body ul {
    list-style: none;
    padding: 0;
}
.rn-body ul li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.35rem;
}
.rn-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.6;
}

.rn-body p {
    margin-bottom: 0.5rem;
}

.rn-body code {
    font-size: 0.8125em;
    padding: 0.15em 0.4em;
    background: oklch(1 0 0 / 0.06);
    border-radius: 4px;
}

.rn-empty {
    text-align: center;
    color: var(--text-dim);
    padding: 3rem 0;
    font-size: 0.9375rem;
}

/* ================================================================
   FOOTER
   ================================================================ */
.site-footer {
    padding: 2.5rem 0;
    border-top: 1px solid oklch(1 0 0 / 0.06);
}

.footer-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-muted);
}
.footer-brand .logo-icon { color: var(--primary); }

.footer-links {
    display: flex;
    gap: 1.5rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}
.footer-links a { transition: color var(--transition); }
.footer-links a:hover { color: var(--text); }

.footer-copy {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 640px) {
    .main-nav,
    .header-actions {
        display: none;
    }
    .mobile-toggle {
        display: flex;
    }

    .rn-hero {
        padding: 6.5rem 1.25rem 2rem;
    }
    .rn-hero-title {
        font-size: 2rem;
    }

    .rn-entry {
        padding: 1.25rem;
    }

    .rn-entry-header {
        gap: 0.5rem;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}