:root {
  --bg: #fafafa;
  --surface: #ffffff;
  --ink: #18181b;
  --muted: #71717a;
  --accent: #7c3aed;
  --accent-soft: #f3eefe;
  --accent-dark: #5b21b6;
  --border: #e4e4e7;
  --danger: #dc2626;
  --ok: #16a34a;
  --ok-soft: #ecfdf3;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 920px; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem 1.5rem;
}

.site-header a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s;
}

.site-header a:hover { color: var(--accent); }

.brand { font-weight: 800; font-size: 1.05rem; letter-spacing: -0.01em; }

.site-header.admin {
  background: #18181b;
  border-bottom: 1px solid #27272a;
}

.site-header.admin a,
.site-header.admin .link {
  color: #a1a1aa;
  font-weight: 500;
  font-size: 0.92rem;
}

.site-header.admin a:hover,
.site-header.admin .link:hover { color: #fff; }

.site-header.admin .brand { color: #fff; }

main { padding: 2.5rem 1.5rem 5rem; }

.footer {
  color: var(--muted);
  font-size: 0.85rem;
  padding: 1.75rem 1.5rem;
  border-top: 1px solid var(--border);
}

/* ---------- Typography ---------- */

h1 { font-size: 1.9rem; font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; margin: 0 0 1rem; }
h2 { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.01em; margin: 2rem 0 0.75rem; }
h3 { font-size: 1.05rem; font-weight: 650; margin: 0 0 0.25rem; }

a { color: var(--accent); }
a:hover { color: var(--accent-dark); }

.meta { color: var(--muted); font-size: 0.875rem; }
.subtitle { color: var(--muted); font-size: 1.1rem; margin-top: -0.5rem; }
.hint { color: var(--muted); font-size: 0.875rem; }

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

.button {
  display: inline-block;
  padding: 0.5rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s;
}

.button:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.button.primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
}

/* ---------- Public: podcast page ---------- */

.podcast-hero {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  padding: 1.75rem;
  margin-bottom: 2.5rem;
  background: linear-gradient(135deg, var(--accent-soft), var(--surface) 60%);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.cover {
  width: 230px;
  height: 230px;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}

.cover-thumb {
  width: 88px;
  height: 88px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.podcast-links { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.25rem; }

.card-list, .episode-list { list-style: none; padding: 0; margin: 0; }

.card,
.episode-list li {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.35rem;
  margin-bottom: 0.85rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.15s;
}

.card { display: flex; gap: 1.15rem; align-items: center; }

.card:hover,
.episode-list li:hover {
  border-color: #d4d4d8;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.episode-list h3 a { color: var(--ink); text-decoration: none; }
.episode-list h3 a:hover { color: var(--accent); }
.episode-list p { margin: 0.3rem 0 0; }

/* ---------- Public: episode page ---------- */

.episode {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow-sm);
}

audio {
  width: 100%;
  margin: 1.5rem 0;
  border-radius: 99px;
}

.share-links { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.show-notes { white-space: pre-line; }

/* ---------- Tables ---------- */

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1.25rem 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

th, td {
  text-align: left;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}

thead th {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: #fafafa;
}

tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.1s; }
tbody tr:hover { background: #fcfcfd; }

.actions { white-space: nowrap; }
.actions a, .actions .link { margin-right: 0.7rem; font-size: 0.88rem; font-weight: 500; text-decoration: none; }

/* ---------- Forms ---------- */

.form { max-width: 660px; }

.form label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
  font-size: 0.875rem;
}

.form input[type="text"], .form input[type="url"], .form input[type="email"],
.form input[type="number"], .form input[type="password"], .form input[type="datetime-local"],
.form input:not([type]), .form textarea, .form select {
  display: block;
  width: 100%;
  padding: 0.55rem 0.75rem;
  margin-top: 0.3rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  font: inherit;
  font-weight: 400;
  background: var(--surface);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form input:focus, .form textarea:focus, .form select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.13);
}

.form .row { display: flex; gap: 1rem; }
.form .row label { flex: 1; }
.form .checkbox { font-weight: 500; }
.form .checkbox input { width: auto; display: inline; margin-right: 0.45rem; accent-color: var(--accent); }
.form input[type="file"] { padding: 0.45rem; font-size: 0.88rem; }

.inline { display: inline; }

.link {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 500;
}

.link:hover { text-decoration: underline; }
.link.danger { color: var(--danger); }

/* ---------- Alerts & badges ---------- */

.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: var(--danger);
  padding: 0.7rem 1rem;
  border-radius: 10px;
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
}

.success {
  background: var(--ok-soft);
  border: 1px solid #bbf7d0;
  color: var(--ok);
  padding: 0.7rem 1rem;
  border-radius: 10px;
  margin-bottom: 1.25rem;
  font-size: 0.92rem;
}

.badge {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.18rem 0.6rem;
  border-radius: 99px;
  letter-spacing: 0.02em;
}

.badge.published { background: var(--ok-soft); color: var(--ok); }
.badge.draft { background: #f4f4f5; color: var(--muted); }

/* ---------- Admin: dashboard ---------- */

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1.75rem 0; }

.stat {
  padding: 1.35rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.stat .num {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent);
}

.stat .label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.analytics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 2rem; }
.analytics-grid section:first-child { grid-column: 1 / -1; }

/* ---------- Login ---------- */

.login-box {
  max-width: 380px;
  margin: 4rem auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.25rem 2.25rem 2rem;
  box-shadow: var(--shadow-md);
}

.login-box h1 { font-size: 1.4rem; margin-bottom: 1.25rem; }
.login-box label { display: block; font-weight: 600; font-size: 0.875rem; margin-bottom: 1rem; }

.login-box input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  margin-top: 0.3rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  font: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.login-box input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.13);
}

.login-box .button { width: 100%; margin-top: 0.5rem; padding: 0.6rem; }

.checksum { font-size: 0.78rem; color: var(--muted); }

/* ---------- Responsive ---------- */

@media (max-width: 680px) {
  .podcast-hero { flex-direction: column; padding: 1.25rem; }
  .cover { width: 100%; height: auto; aspect-ratio: 1; }
  .form .row { flex-direction: column; gap: 0; }
  .stats { grid-template-columns: 1fr; }
  .analytics-grid { grid-template-columns: 1fr; }
  .episode { padding: 1.25rem; }
  table { display: block; overflow-x: auto; }
}