/* ============================================================
   Identity Nerd Podcast — styles.css
   Design language: mirrors setsaastrustadvisory.com
   ============================================================ */

:root {
  --color-bg: #0b1020;
  --color-bg-alt: #101628;
  --color-primary: #1f86ff;
  --color-primary-soft: rgba(31, 134, 255, 0.1);
  --color-accent: #1ad4ff;
  --color-text: #f5f7ff;
  --color-text-muted: #a4acc4;
  --color-border: #1e2740;
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.35);
  --radius-lg: 18px;
  --radius-pill: 999px;
  --transition: 0.2s ease;
  --max-width: 1080px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #182445 0, #050814 55%, #02030a 100%);
  color: var(--color-text);
  line-height: 1.6;
}

/* ── Layout ── */

.page-wrapper { min-height: 100vh; display: flex; flex-direction: column; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ── Header ── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(5,8,20,0.9), rgba(5,8,20,0.7), transparent);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-text);
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: #050814;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.brand-logo-nerd { line-height: 1; }

.brand-text-main {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-text-sub {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-muted);
}

.nav-links { display: flex; align-items: center; gap: 1.5rem; }

.nav-link {
  position: relative;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -0.3rem;
  width: 0; height: 2px;
  border-radius: 999px;
  background: linear-gradient(to right, #1f86ff, #1ad4ff);
  transition: width 0.2s ease;
}

.nav-link:hover { color: var(--color-text); }
.nav-link:hover::after, .nav-link--active::after { width: 100%; }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(154,218,255,0.6);
  background: radial-gradient(circle at 0 0, rgba(154,218,255,0.28), transparent 55%);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text);
  box-shadow: 0 0 30px rgba(154,218,255,0.2);
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0.3rem;
}

.nav-toggle-line {
  width: 20px; height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  display: block;
  margin: 4px 0;
}

/* ── Main ── */

main { flex: 1; padding: 2.5rem 0 3rem; }

/* ── Hero ── */

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.page-hero--single { max-width: 720px; grid-template-columns: 1fr; }

.page-title-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
}

.page-title {
  font-size: clamp(2rem, 3vw, 2.5rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 0.8rem;
}

.page-title span {
  background: linear-gradient(120deg, #1f86ff, #1ad4ff);
  -webkit-background-clip: text;
  color: transparent;
}

.page-subtitle {
  font-size: 0.97rem;
  color: var(--color-text-muted);
  max-width: 36rem;
}

/* ── Hero pill ── */

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.8rem;
  background: rgba(8,20,45,0.92);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(159,208,255,0.5);
  font-size: 0.75rem;
  margin-bottom: 0.75rem;
}

.hero-pill-dot {
  width: 8px; height: 8px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0, #ffffff, #37ffb0);
  box-shadow: 0 0 12px #37ffb0;
}

/* ── Hero card ── */

.hero-card {
  border-radius: 24px;
  background: radial-gradient(circle at top, rgba(154,218,255,0.18), #050814);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.host-badge {
  position: absolute;
  top: 1rem; left: 1.4rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  border: 1px solid rgba(26,212,255,0.3);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-pill);
}

.hero-card-portrait {
  position: absolute;
  top: 1rem; right: 1.2rem;
  width: 64px; height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(154,218,255,0.85);
  box-shadow: 0 8px 20px rgba(0,0,0,0.5);
}

.hero-card-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  margin: 2.2rem 0 0.4rem;
}

.hero-card-name { font-size: 1.2rem; font-weight: 600; }

.hero-card-role {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.hero-card-taglist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.hero-card-tag {
  font-size: 0.7rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-pill);
  background: rgba(7,18,45,0.95);
  border: 1px solid rgba(152,215,255,0.3);
}

.hero-card-footer {
  border-top: 1px dashed rgba(255,255,255,0.15);
  padding-top: 0.75rem;
  margin-top: 0.4rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ── Listen bar ── */

.listen-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.listen-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
}

.listen-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: rgba(7,10,25,0.96);
  font-size: 0.78rem;
  text-decoration: none;
  color: var(--color-text);
  transition: border-color var(--transition), background var(--transition);
}

.listen-btn:hover {
  border-color: var(--color-primary);
  background: rgba(31,134,255,0.1);
}

/* ── Sections ── */

.section { margin-top: 3rem; }

.section-header { margin-bottom: 1.5rem; }

.section-kicker {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}

.section-title {
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 0 0 0.6rem;
}

.section-description { font-size: 0.9rem; color: var(--color-text-muted); }

/* ── Cards ── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.3rem;
}

.card {
  background: rgba(7,10,25,0.96);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.1rem 1.2rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(31,134,255,0.16), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover::before { opacity: 1; }

.card-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 0.4rem;
}

.card-tagline { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 0.7rem; }
.card-body { font-size: 0.85rem; color: var(--color-text-muted); }

/* ── Episode list ── */

.episode-list { display: flex; flex-direction: column; gap: 1.1rem; }

.episode-card {
  background: rgba(7,10,25,0.96);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  display: grid;
  grid-template-columns: 180px 1fr;
  text-decoration: none;
  color: var(--color-text);
  transition: border-color var(--transition);
  position: relative;
}

.episode-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at top left, rgba(31,134,255,0.1), transparent 55%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.episode-card:hover { border-color: rgba(31,134,255,0.4); }
.episode-card:hover::before { opacity: 1; }

.episode-card-thumb {
  width: 180px;
  height: 120px;
  object-fit: cover;
  background: #050814;
  flex-shrink: 0;
}

.episode-card-thumb-placeholder {
  width: 180px;
  height: 120px;
  background: radial-gradient(circle at center, rgba(31,134,255,0.15), #050814);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.episode-card-body { padding: 0.9rem 1.1rem; }

.episode-card-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.episode-card-title {
  font-size: 0.97rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
}

.episode-card-guest {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ── Filter bar ── */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.filter-btn {
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: rgba(7,10,25,0.96);
  color: var(--color-text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn--active {
  border-color: var(--color-primary);
  color: var(--color-text);
  background: rgba(31,134,255,0.12);
}

/* ── Episode page ── */

.episode-breadcrumb {
  margin-bottom: 1.5rem;
  font-size: 0.82rem;
}

.episode-breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.episode-breadcrumb a:hover { color: var(--color-text); }

.episode-page { max-width: 800px; }

.episode-video-wrap {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #050814;
  border: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.episode-video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}

.episode-video-placeholder {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.episode-meta-bar {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
}

.episode-number { color: var(--color-primary); }

.episode-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}

.guest-card {
  background: rgba(7,10,25,0.96);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.5rem;
}

.guest-name { font-size: 1rem; font-weight: 600; }
.guest-role { font-size: 0.85rem; color: var(--color-text-muted); }

.episode-shownotes {
  background: rgba(7,10,25,0.96);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 1.1rem;
  margin-bottom: 1.5rem;
}

.episode-shownotes-body { font-size: 0.9rem; color: var(--color-text-muted); }
.episode-shownotes-body p { margin: 0.5rem 0; }
.episode-shownotes-body a { color: var(--color-primary); }
.episode-shownotes-body h3 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.12em; margin: 1rem 0 0.3rem; }

.episode-audio { margin-bottom: 1.5rem; }

.episode-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.episode-nav-btn {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-decoration: none;
  max-width: 45%;
}

.episode-nav-btn:hover { color: var(--color-text); }
.episode-nav-btn--next { margin-left: auto; text-align: right; }

/* ── Footer ── */

.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.1rem 0 1.4rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-links { display: flex; gap: 1.2rem; }
.footer-links a, .site-footer a { color: var(--color-text-muted); text-decoration: none; }
.footer-links a:hover, .site-footer a:hover { color: var(--color-text); }

/* ── Utilities ── */

.muted { color: var(--color-text-muted); }

/* ── Responsive ── */

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav-links {
    position: absolute;
    right: 1.25rem; top: 3.2rem;
    flex-direction: column;
    align-items: flex-end;
    padding: 0.6rem 0.9rem;
    border-radius: 14px;
    background: rgba(4,6,16,0.98);
    border: 1px solid rgba(255,255,255,0.06);
    box-shadow: var(--shadow-soft);
    display: none;
  }

  .nav-links.nav-open { display: flex; }

  .page-hero { grid-template-columns: 1fr; }
  .hero-card { order: -1; }

  .episode-card { grid-template-columns: 1fr; }
  .episode-card-thumb,
  .episode-card-thumb-placeholder { width: 100%; }

  .episode-nav { flex-direction: column; }
  .episode-nav-btn { max-width: 100%; }
  .episode-nav-btn--next { margin-left: 0; text-align: left; }
}