/* ===== CSS VARIABLES & RESET ===== */
:root {
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-text: #1a1a1a;
    --color-text-muted: #666666;
    --color-primary: #000000;
    --color-primary-hover: #333333;
    --color-border: #e0e0e0;
    --color-accent: #e63946;
    
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'SF Mono', Monaco, monospace;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    
    --container-max: 1200px;
    --transition: 0.2s ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #0a0a0a;
        --color-bg-alt: #111111;
        --color-text: #f0f0f0;
        --color-text-muted: #999999;
        --color-primary: #ffffff;
        --color-border: #333333;
    }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
button { font: inherit; cursor: pointer; background: none; border: none; }

/* ===== UTILITIES ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 500; border-radius: var(--radius-md);
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--color-primary); color: #fff;
}
.btn-primary:hover {
    background: var(--color-primary-hover); transform: translateY(-1px);
}
.btn-outline {
    border: 2px solid var(--color-border); color: var(--color-text);
}
.btn-outline:hover {
    border-color: var(--color-primary); color: var(--color-primary);
}
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }

/* ===== HEADER ===== */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}
@media (prefers-color-scheme: dark) {
    .site-header { background: rgba(10,10,10,0.95); }
}

.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: var(--spacing-md);
    min-height: 64px;
}

.logo {
    display: flex; align-items: center; gap: var(--spacing-sm);
    font-weight: 700; font-size: 1.25rem;
}
.logo-icon { font-size: 1.5rem; }

/* Mobile Nav Toggle */
.mobile-toggle {
    display: none; width: 40px; height: 40px;
    align-items: center; justify-content: center;
}
.hamburger, .hamburger::before, .hamburger::after {
    display: block; width: 20px; height: 2px;
    background: var(--color-text); position: relative;
    transition: transform var(--transition);
}
.hamburger::before, .hamburger::after {
    content: ''; position: absolute; left: 0;
}
.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

.main-nav { display: flex; }
.nav-list {
    display: flex; gap: var(--spacing-lg);
    list-style: none;
}
.nav-list a {
    font-weight: 500; padding: var(--spacing-sm) 0;
    position: relative;
}
.nav-list a.active, .nav-list a:hover {
    color: var(--color-primary);
}
.nav-list a.active::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 100%; height: 2px; background: var(--color-primary);
}

/* ===== HERO ===== */
.hero {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg-alt);
}
.hero-inner {
    display: grid; gap: var(--spacing-lg);
    align-items: center;
}
@media (min-width: 768px) {
    .hero-inner { grid-template-columns: 1fr 1fr; }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800; line-height: 1.1;
    letter-spacing: -0.02em;
}
.hero-subtitle {
    font-size: 1.125rem; color: var(--color-text-muted);
    margin: var(--spacing-md) 0 var(--spacing-lg);
    max-width: 40ch;
}
.hero-actions {
    display: flex; gap: var(--spacing-sm); flex-wrap: wrap;
}

.hero-visual { display: flex; justify-content: center; }
.podcast-art {
    width: 200px; height: 200px;
    background: linear-gradient(135deg, var(--color-primary), #444);
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}
.art-icon { font-size: 4rem; color: #fff; z-index: 2; }
.art-wave {
    position: absolute; inset: 0;
    background: repeating-radial-gradient(circle at 50% 50%, transparent 0, transparent 10px, rgba(255,255,255,0.1) 10px, rgba(255,255,255,0.1) 20px);
    animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

/* ===== EPISODES GRID ===== */
.episodes-section { padding: var(--spacing-xl) 0; }
.section-title {
    font-size: 1.75rem; font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.episodes-grid {
    display: grid; gap: var(--spacing-lg);
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.episode-card {
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}
.episode-card:hover {
    box-shadow: var(--shadow-md); transform: translateY(-2px);
}

.episode-cover {
    position: relative; aspect-ratio: 1; background: var(--color-bg-alt);
    display: flex; align-items: center; justify-content: center;
}
.episode-cover img { width: 100%; height: 100%; object-fit: cover; }
.episode-cover.placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.play-icon-lg { font-size: 3rem; color: #fff; opacity: 0.9; }

.play-btn {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.4); opacity: 0; transition: opacity var(--transition);
}
.episode-cover:hover .play-btn { opacity: 1; }
.play-icon {
    width: 48px; height: 48px; border-radius: 50%;
    background: #fff; color: #000;
    display: flex; align-items: center; justify-content: center;
    font-weight: bold; font-size: 1.25rem;
}

.episode-meta {
    display: flex; gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-md) 0;
    font-size: 0.875rem; color: var(--color-text-muted);
}
.duration { font-family: var(--font-mono); }

.episode-title {
    padding: var(--spacing-sm) var(--spacing-md) 0;
    font-size: 1.125rem; font-weight: 600;
}
.episode-title a:hover { color: var(--color-primary); }

.episode-excerpt {
    padding: 0 var(--spacing-md);
    color: var(--color-text-muted); font-size: 0.95rem;
}
.episode-link {
    display: block; padding: var(--spacing-md);
    font-weight: 500; font-size: 0.9rem;
}

.episodes-more { text-align: center; margin-top: var(--spacing-lg); }

/* ===== EPISODE LIST (Archive) ===== */
.episodes-archive { padding: var(--spacing-xl) 0; }
.page-title { font-size: 2rem; font-weight: 700; margin-bottom: var(--spacing-lg); }

.episodes-list { display: flex; flex-direction: column; gap: var(--spacing-md); }

.episode-row {
    display: flex; gap: var(--spacing-md); align-items: flex-start;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border); border-radius: var(--radius-md);
    transition: background var(--transition);
}
.episode-row:hover { background: var(--color-bg-alt); }

.episode-row-content { display: flex; gap: var(--spacing-md); flex: 1; min-width: 0; }

.play-btn-small {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--color-primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: transform var(--transition);
}
.play-btn-small:hover { transform: scale(1.05); }
.play-btn-small .play-icon { font-size: 0.875rem; }

.episode-row-info { min-width: 0; }
.episode-row-title {
    font-size: 1.125rem; font-weight: 600; margin-bottom: var(--spacing-xs);
}
.episode-row-title a:hover { color: var(--color-accent); }

.episode-row-meta {
    display: flex; gap: var(--spacing-xs); align-items: center;
    font-size: 0.875rem; color: var(--color-text-muted); margin-bottom: var(--spacing-sm);
}
.separator { opacity: 0.5; }

.episode-row-excerpt {
    color: var(--color-text-muted); font-size: 0.95rem;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
}
.episode-row-link {
    width: 36px; height: 36px; border-radius: 50%;
    border: 1px solid var(--color-border);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; font-weight: bold;
}

/* Pagination */
.pagination { margin-top: var(--spacing-lg); text-align: center; }
.pagination-list {
    display: flex; gap: var(--spacing-xs); justify-content: center;
    flex-wrap: wrap; list-style: none;
}
.pagination-link, .pagination-current {
    padding: 0.5rem 0.75rem; border-radius: var(--radius-sm);
    font-size: 0.875rem;
}
.pagination-link {
    border: 1px solid var(--color-border);
}
.pagination-link:hover {
    background: var(--color-bg-alt); border-color: var(--color-primary);
}
.pagination-current { color: var(--color-text-muted); }

/* ===== EPISODE DETAIL ===== */
.episode-detail { padding: var(--spacing-xl) 0; }
.back-link {
    display: inline-flex; align-items: center; gap: var(--spacing-xs);
    color: var(--color-text-muted); margin-bottom: var(--spacing-lg);
}
.back-link:hover { color: var(--color-primary); }

.episode-header {
    display: grid; gap: var(--spacing-lg); margin-bottom: var(--spacing-lg);
}
@media (min-width: 768px) {
    .episode-header { grid-template-columns: 200px 1fr; align-items: start; }
}

.episode-art {
    aspect-ratio: 1; border-radius: var(--radius-md); overflow: hidden;
    background: var(--color-bg-alt);
}
.episode-art img { width: 100%; height: 100%; object-fit: cover; }

.episode-headline { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.episode-date { font-size: 0.875rem; color: var(--color-text-muted); }
.episode-main-title { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.2; }
.episode-duration {
    display: inline-flex; align-items: center; gap: var(--spacing-xs);
    font-family: var(--font-mono); font-size: 0.875rem; color: var(--color-text-muted);
}

/* Episode Player */
.episode-player {
    background: var(--color-bg-alt); border-radius: var(--radius-md);
    padding: var(--spacing-lg); margin-bottom: var(--spacing-lg);
}
.player-box {
    display: flex; align-items: center; gap: var(--spacing-md); margin-bottom: var(--spacing-md);
}
.play-btn-large {
    width: 56px; height: 56px; border-radius: 50%;
    background: var(--color-primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; transition: transform var(--transition);
}
.play-btn-large:hover { transform: scale(1.05); }
.play-btn-large.playing .play-icon-lg { animation: pulseBtn 1s infinite; }
@keyframes pulseBtn { 0%, 100% { opacity: 1; } 50% { opacity: 0.7; } }

.episode-audio { flex: 1; min-width: 0; }
.player-actions { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }

/* Content */
.episode-content { margin-bottom: var(--spacing-xl); }
.content-body {
    font-size: 1.1rem; line-height: 1.7;
}
.content-body p { margin-bottom: var(--spacing-md); }
.content-body p:last-child { margin-bottom: 0; }

/* Subscribe Grid */
.episode-subscribe {
    background: var(--color-bg-alt); border-radius: var(--radius-md);
    padding: var(--spacing-lg); text-align: center;
}
.episode-subscribe h3 { margin-bottom: var(--spacing-md); }
.subscribe-grid {
    display: grid; gap: var(--spacing-sm);
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}
.subscribe-card {
    padding: var(--spacing-md); border-radius: var(--radius-sm);
    background: #fff; border: 1px solid var(--color-border);
    font-weight: 500; transition: all var(--transition);
}
.subscribe-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.subscribe-card.apple { color: #000; }
.subscribe-card.spotify { color: #1db954; }
.subscribe-card.yandex { color: #ff0066; }
.subscribe-card.rss { color: #f26522; }

/* Episode Navigation */
.episode-nav {
    display: flex; justify-content: space-between; gap: var(--spacing-md);
    padding-top: var(--spacing-lg); border-top: 1px solid var(--color-border);
}
.nav-link {
    display: flex; align-items: center; gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border); border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.nav-link:hover { border-color: var(--color-primary); background: var(--color-bg-alt); }

/* ===== ABOUT SECTION ===== */
.about-section { padding: var(--spacing-xl) 0; background: var(--color-bg-alt); }
.about-inner { max-width: 700px; }
.about-content { font-size: 1.1rem; }
.about-content p { margin-bottom: var(--spacing-md); }
.about-list {
    list-style: none; display: grid; gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}
.about-list li {
    display: flex; align-items: center; gap: var(--spacing-sm);
}

/* ===== FOOTER ===== */
.site-footer {
    background: var(--color-bg-alt); border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}
.footer-inner {
    display: grid; gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}
@media (min-width: 768px) {
    .footer-inner { grid-template-columns: 1fr auto; align-items: start; }
}

.footer-brand { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.footer-brand p { color: var(--color-text-muted); font-size: 0.95rem; }

.footer-links h4 { margin-bottom: var(--spacing-sm); }
.subscribe-list { list-style: none; display: flex; flex-direction: column; gap: var(--spacing-xs); }
.subscribe-link {
    display: inline-flex; align-items: center; gap: var(--spacing-xs);
    padding: var(--spacing-xs) 0; font-size: 0.95rem;
}

.footer-copyright {
    padding-top: var(--spacing-lg); border-top: 1px solid var(--color-border);
    text-align: center; color: var(--color-text-muted); font-size: 0.875rem;
}
@media (min-width: 768px) {
    .footer-copyright { grid-column: 1 / -1; text-align: left; }
}

/* ===== STICKY AUDIO PLAYER ===== */
.audio-player {
    position: sticky; bottom: 0; z-index: 90;
    background: var(--color-bg); border-top: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
}
.player-inner { display: flex; align-items: center; gap: var(--spacing-md); }
.player-info { flex: 1; min-width: 0; }
.player-title {
    font-weight: 500; font-size: 0.95rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.player-audio { width: 100%; max-width: 400px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 767px) {
    .mobile-toggle { display: flex; }
    .main-nav {
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--color-bg); border-bottom: 1px solid var(--color-border);
        max-height: 0; overflow: hidden; transition: max-height var(--transition);
    }
    .main-nav.open { max-height: 300px; }
    .nav-list { flex-direction: column; padding: var(--spacing-md); gap: var(--spacing-sm); }
    
    .hero-inner { text-align: center; }
    .hero-actions { justify-content: center; }
    
    .episode-row { flex-direction: column; }
    .episode-row-content { width: 100%; }
    
    .player-inner { flex-wrap: wrap; }
    .player-audio { order: 3; width: 100%; margin-top: var(--spacing-sm); }
    
    .episode-nav { flex-direction: column; }
    .nav-link { justify-content: center; width: 100%; }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===== PRINT ===== */
@media print {
    .site-header, .audio-player, .site-footer, .play-btn, .player-actions { display: none !important; }
    body { font-size: 12pt; color: #000; background: #fff; }
    a { text-decoration: underline; color: #000; }
}