/* Tech Talk - Style Sheet */
/* Dark theme with accent colors inspired by broadcast/tech aesthetics */

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2035;
    --bg-card-hover: #1f2847;
    --text-primary: #e5e7eb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --border: #1f2937;
    --success: #10b981;
    --radius: 12px;
    --max-width: 900px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* Header */
.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(17, 24, 39, 0.9);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}
.logo:hover { color: var(--accent); }
nav a {
    color: var(--text-secondary);
    margin-left: 24px;
    font-size: 0.9rem;
    font-weight: 500;
}
nav a:hover { color: var(--text-primary); }
.nav-spotify {
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
    margin-left: 24px;
    opacity: 0.8;
    transition: opacity 0.2s;
}
.nav-spotify:hover { opacity: 1; }
.nav-apple {
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
    margin-left: 12px;
    opacity: 0.8;
    transition: opacity 0.2s;
}
.nav-apple:hover { opacity: 1; }

/* Hero */
.hero {
    padding: 80px 0 60px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}
.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}
.hero-description {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 32px;
}
.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 32px;
}
.hero-stats {
    display: flex;
    gap: 32px;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.hero-stats span {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}
.btn-download { background: var(--bg-card); color: var(--text-primary); border: 1px solid var(--border); }
.btn-download:hover { background: var(--bg-card-hover); color: #fff; }
.btn-subscribe { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn-subscribe:hover { background: var(--accent); color: #fff; }
.btn-spotify,
.btn-apple,
.hero-actions .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 200px;
}
.btn-spotify svg,
.btn-apple svg,
.hero-actions .btn-primary svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}
.btn-spotify {
    background: #1DB954;
    color: #fff;
}
.btn-spotify:hover {
    background: #1ed760;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(29, 185, 84, 0.3);
}
.btn-apple {
    background: #A033FF;
    color: #fff;
}
.btn-apple:hover {
    background: #b44dff;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(160, 51, 255, 0.3);
}

/* Episodes List */
.episodes-list {
    padding: 60px 0;
}
.episodes-list h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}
.episodes-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Episode Card */
.episode-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 20px;
}
.episode-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent-glow);
}
.episode-link {
    flex: 1;
    color: var(--text-primary);
}
.episode-link:hover { color: var(--text-primary); }
.episode-card-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.episode-number {
    color: var(--accent);
    font-weight: 600;
}
.episode-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}
.episode-card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Mini play button on cards */
.episode-card-player { flex-shrink: 0; }
.mini-play-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--accent);
    background: transparent;
    color: var(--accent);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.mini-play-btn:hover {
    background: var(--accent);
    color: #fff;
}

/* Audio Player (Episode Page) */
.audio-player {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin: 32px 0;
}
.player-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}
.play-button {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
}
.play-button:hover {
    background: var(--accent-hover);
    transform: scale(1.05);
}
.progress-container {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}
.progress-bar {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}
.progress-bar::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
}
.progress-bar::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
}
.time-current, .time-total {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
    min-width: 45px;
}
.speed-button {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    font-weight: 600;
}
.speed-button:hover { color: var(--text-primary); border-color: var(--accent); }

/* Episode Page */
.episode-page { padding: 40px 0 80px; }
.episode-detail h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 16px 0;
    letter-spacing: -0.02em;
}
.episode-meta {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.episode-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 8px;
}
.episode-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 48px;
}

/* Transcript */
.transcript {
    border-top: 1px solid var(--border);
    padding-top: 40px;
}
.transcript h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 24px;
}
.transcript-content {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-secondary);
}
.transcript-content p { margin-bottom: 12px; }
.transcript-section {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
    margin: 32px 0 16px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.transcript-subsection {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 24px 0 12px;
}
.transcript-headline {
    color: var(--text-primary);
}
.transcript-item {
    padding-left: 16px;
    border-left: 2px solid var(--border);
    margin-bottom: 8px;
}

/* Footer */
.site-footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.site-footer a { color: var(--text-secondary); }
.site-footer p { margin-bottom: 8px; }

/* Responsive */
@media (max-width: 768px) {
    .site-header .container {
        flex-wrap: wrap;
        gap: 8px;
    }
    nav {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 4px 0;
    }
    nav a {
        margin-left: 16px;
        font-size: 0.85rem;
    }
    .nav-spotify,
    .nav-apple {
        margin-left: 12px;
    }
}

@media (max-width: 640px) {
    .site-header .container {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    nav {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 4px 0;
    }
    nav a {
        margin-left: 12px;
        margin-right: 4px;
    }
    nav a:first-child {
        margin-left: 0;
    }
    .nav-spotify {
        margin-left: 12px;
    }
    .nav-apple {
        margin-left: 8px;
    }
    .hero h1 { font-size: 2rem; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-stats { flex-direction: column; gap: 8px; }
    .episode-card { flex-direction: column; align-items: stretch; }
    .episode-card-player { align-self: flex-start; }
    .player-controls { flex-wrap: wrap; }
    .episode-meta { flex-wrap: wrap; gap: 8px; }
    .episode-actions { flex-direction: column; }
    .episode-detail h1 { font-size: 1.5rem; }
}

/* Hero with Artwork Layout */
.hero-content {
    display: flex;
    align-items: center;
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
}

.hero-artwork {
    flex-shrink: 0;
}

.podcast-cover {
    width: 280px;
    height: 280px;
    max-width: 280px;
    max-height: 280px;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4),
                0 0 0 1px rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.podcast-cover:hover {
    transform: scale(1.02);
}

.hero-text {
    flex: 1;
    text-align: left;
}

.hero-text h1 {
    text-align: left;
}

.hero-text .hero-tagline,
.hero-text .hero-description {
    text-align: left;
}

.hero-text .hero-actions {
    justify-content: flex-start;
}

.hero-text .hero-stats {
    justify-content: flex-start;
}

/* Responsive adjustments for artwork */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        gap: 32px;
        text-align: center;
    }

    .podcast-cover {
        width: 200px;
        height: 200px;
        max-width: 200px;
        max-height: 200px;
    }

    .hero-text h1,
    .hero-text .hero-tagline,
    .hero-text .hero-description {
        text-align: center;
    }

    .hero-text .hero-actions {
        justify-content: center;
    }

    .hero-text .hero-stats {
        justify-content: center;
    }
}

/* ============================================
   ARCHIVE PAGE STYLES
   ============================================ */

/* Hero compact version for archive */
.hero-compact {
    padding: 3rem 0 2rem;
}

.hero-compact h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* Archive stats section */
.archive-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0 3rem;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Year groups */
.year-group {
    margin-bottom: 3rem;
}

.year-heading {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent);
}

/* Loading and empty states */
.loading-state,
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #64748b;
}

.loading-state p,
.empty-state p {
    font-size: 1.125rem;
}

/* Active nav link */
.site-header nav a.active {
    color: #2563eb;
    font-weight: 600;
}

/* Responsive adjustments for archive */
@media (max-width: 768px) {
    .hero-compact h1 {
        font-size: 2rem;
    }

    .archive-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem;
    }

    .year-heading {
        font-size: 1.5rem;
    }
}
/* Spotify & Apple button visited/focus/active states */
.btn-spotify:visited,
.btn-apple:visited {
    color: #fff;
}
.btn-spotify:focus,
.btn-apple:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}
.btn-spotify:active {
    transform: translateY(0);
    background: #169945;
}
.btn-apple:active {
    transform: translateY(0);
    background: #8c2ad9;
}

/* ============================================
   COLLAPSIBLE YEAR/MONTH GROUPS
   ============================================ */

.collapsible-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
    width: 100%;
    background: none;
    border: none;
    padding: 0;
    text-align: left;
}

.collapsible-toggle:hover .year-heading,
.collapsible-toggle:hover .month-heading {
    color: var(--accent);
}

.collapse-icon {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 6px solid var(--text-muted);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.collapsible-toggle.open .collapse-icon {
    transform: rotate(90deg);
}

.collapsible-content {
    display: none;
}

.collapsible-content.open {
    display: block;
}

.month-group {
    margin-bottom: 2rem;
}

.month-heading {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0;
}

.month-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 8px;
}

/* Override year-heading margin when inside collapsible toggle */
.collapsible-toggle .year-heading {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.year-group .year-divider {
    height: 3px;
    background: var(--accent);
    border: none;
    margin-bottom: 1.5rem;
}