/* ===== Rare Diseases with Dr. Hans ===== */
@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Open+Sans:wght@400;600&display=swap');

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

:root {
  --dark: #1b1b1b;
  --purple: #2d0a4e;
  --accent: #7c3aed;
  --light: #f7f7f7;
}

body {
  font-family: 'Open Sans', Arial, sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background: #fff;
}

h1, h2, h3, h4 { font-family: 'Archivo Black', Arial, sans-serif; font-weight: 400; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Header / nav */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 32px; background: #fff; border-bottom: 1px solid #eee;
  position: sticky; top: 0; z-index: 100;
}
.site-header .logo img { height: 56px; width: auto; border-radius: 6px; }
.nav a {
  margin-left: 26px; font-size: 15px; font-weight: 600; color: var(--dark);
}
.nav a:hover { color: var(--accent); }

/* Hero */
.hero {
  min-height: 70vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: #fff; padding: 80px 20px;
  background: linear-gradient(rgba(0,0,0,.45), rgba(0,0,0,.45)),
              url('background.png') center/cover no-repeat;
}
.hero h1 { font-size: clamp(32px, 6vw, 54px); line-height: 1.15; margin-bottom: 20px; }
.hero p { max-width: 720px; font-size: 18px; margin-bottom: 28px; }

/* Buttons */
.btn {
  display: inline-block; background: var(--accent); color: #fff;
  padding: 12px 28px; border-radius: 4px; font-weight: 600; font-size: 15px;
  border: none; cursor: pointer; transition: background .2s;
}
.btn:hover { background: #5b21b6; }

/* Sections */
.section { max-width: 960px; margin: 0 auto; padding: 60px 24px; }
.section h2 { font-size: 20px; text-transform: uppercase; margin-bottom: 20px; letter-spacing: .5px; }
.section p { margin-bottom: 16px; }
.meet { display: grid; grid-template-columns: 1fr 1.4fr; gap: 36px; align-items: center; }
.meet img { border-radius: 8px; }
@media (max-width: 720px){ .meet { grid-template-columns: 1fr; } }

/* Podcast episodes */
.episodes { max-width: 900px; margin: 0 auto; padding: 40px 24px; }
.page-title { text-align: center; font-size: 30px; margin: 40px 0; text-transform: uppercase; }
.episode { margin-bottom: 56px; }
.episode h4 { font-size: 18px; margin-bottom: 14px; }
.video-wrap { position: relative; padding-bottom: 56.25%; height: 0; margin-bottom: 16px; }
.video-wrap iframe { position: absolute; top:0; left:0; width:100%; height:100%; border:0; border-radius: 6px; }
.episode p { margin-bottom: 12px; }
.episode a { color: var(--accent); word-break: break-word; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 720px){ .contact-grid { grid-template-columns: 1fr; } }
.contact form { display: flex; flex-direction: column; gap: 14px; }
.contact input, .contact textarea {
  padding: 12px; border: 1px solid #ccc; border-radius: 4px; font: inherit;
}
.contact textarea { min-height: 140px; resize: vertical; }
.social a { display: inline-block; margin-right: 18px; font-weight: 600; color: var(--accent); }

/* Footer */
.site-footer {
  background: var(--dark); color: #cfcfcf; font-size: 13px;
  padding: 40px 24px; text-align: center;
}
.site-footer .disclaimer { max-width: 820px; margin: 0 auto; }


/* ===== Site polish & enhancements ===== */

/* Animated gradient section dividers */
.divider {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}
.divider span {
  display: block;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg,
    rgba(124,58,237,0) 0%,
    var(--accent) 20%,
    var(--purple) 50%,
    var(--accent) 80%,
    rgba(124,58,237,0) 100%);
  background-size: 200% 100%;
  animation: dividerFlow 6s linear infinite;
  opacity: .85;
}
@keyframes dividerFlow {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Section heading accent underline */
.section h2 {
  position: relative;
  padding-bottom: 12px;
}
.section h2::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 56px; height: 3px;
  border-radius: 3px;
  background: var(--accent);
  transition: width .5s ease;
}
.reveal.in .section h2::after,
.section.reveal.in h2::after { width: 96px; }

/* Scroll reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* Meet Dr. Hans video block on homepage */
.meet-video {
  margin-top: 40px;
}
.meet-video h3 {
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 16px;
  color: var(--purple);
}
.meet-video .video-caption {
  margin-top: 14px;
  color: #444;
  font-style: italic;
}

/* Animated nav underline */
.nav a {
  position: relative;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav a:hover::after { transform: scaleX(1); }

/* Button hover lift */
.btn {
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(124,58,237,.35);
  background: var(--purple);
}

/* Episode cards lift subtly on hover */
.episode {
  transition: transform .25s ease;
}
.episode:hover { transform: translateY(-3px); }

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  .divider span { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, .episode:hover { transform: none; }
}


/* ===== Podcast page cool-factor ===== */

/* Two-per-row responsive grid */
.episode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 720px) {
  .episode-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* Episode cards */
.episode-grid .episode {
  position: relative;
  margin-bottom: 0;
  padding: 22px 20px 20px;
  background: linear-gradient(160deg, #ffffff 0%, #f5f0fb 100%);
  border: 1px solid #ece6f6;
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(45,10,78,.06);
  overflow: hidden;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
/* Purple accent bar that sweeps across the top on hover */
.episode-grid .episode::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.episode-grid .episode:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 34px rgba(124,58,237,.22);
  border-color: #d9c9f2;
}
.episode-grid .episode:hover::before { transform: scaleX(1); }

/* Episode number badge */
.ep-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px; height: 46px;
  padding: 0 6px;
  margin-bottom: 12px;
  font-family: 'Archivo Black', Arial, sans-serif;
  font-size: 15px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(124,58,237,.35);
  letter-spacing: .5px;
}
.episode-grid .episode h4 {
  font-size: 17px;
  line-height: 1.3;
  min-height: 44px;
}
.episode-grid .episode p {
  font-size: 14px;
  color: #4a4a4a;
}
.episode-grid .episode a { color: var(--accent); }

/* Jazzed-up podcast page title */
.episodes .page-title {
  position: relative;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.episodes .page-title::after {
  content: "";
  display: block;
  width: 90px; height: 4px;
  margin: 14px auto 0;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  background-size: 200% 100%;
  animation: dividerFlow 6s linear infinite;
}

/* Keep hover lift disabled under reduced motion for cards too */
@media (prefers-reduced-motion: reduce) {
  .episode-grid .episode:hover { transform: none; }
  .episode-grid .episode::before { transition: none; }
}


/* ===== Podcast page: hero, click-to-play, tags, filter, stagger ===== */

/* Click-to-play thumbnail */
.video-wrap.ctp { cursor: pointer; }
.video-wrap.ctp .thumb {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 6px;
  transition: transform .4s ease, filter .3s ease;
}
.video-wrap.ctp:hover .thumb { transform: scale(1.05); filter: brightness(.82); }
.video-wrap.ctp .play-btn {
  position: absolute; top: 50%; left: 50%;
  width: 74px; height: 74px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  box-shadow: 0 8px 24px rgba(124,58,237,.5);
  transition: transform .25s ease, box-shadow .25s ease;
  z-index: 2;
}
.video-wrap.ctp .play-btn::after {
  content: "";
  position: absolute; top: 50%; left: 54%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 13px 0 13px 22px;
  border-color: transparent transparent transparent #fff;
}
.video-wrap.ctp:hover .play-btn {
  transform: translate(-50%, -50%) scale(1.12);
  box-shadow: 0 10px 30px rgba(124,58,237,.65);
}
.video-wrap.ctp:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* Featured / hero episode */
.featured {
  max-width: 900px;
  margin: 0 auto 10px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 34px;
  align-items: center;
  padding: 26px;
  border-radius: 18px;
  background: linear-gradient(135deg, #2d0a4e 0%, #4a1585 55%, #7c3aed 130%);
  color: #fff;
  box-shadow: 0 18px 40px rgba(45,10,78,.35);
}
.featured .featured-media { position: relative; }
.featured .video-wrap { margin-bottom: 0; }
.featured-label {
  display: inline-block;
  font-family: 'Archivo Black', Arial, sans-serif;
  font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase;
  background: rgba(255,255,255,.18);
  padding: 6px 12px; border-radius: 999px;
  margin-bottom: 12px;
}
.featured-info h2 { font-size: 22px; line-height: 1.25; margin-bottom: 12px; }
.featured-info p { font-size: 14px; color: #e8ddf7; margin-top: 12px; }
.featured-info .tags .tag {
  background: rgba(255,255,255,.16);
  color: #fff;
  border-color: transparent;
}
@media (max-width: 720px) {
  .featured { grid-template-columns: 1fr; gap: 22px; padding: 18px; }
}

/* Category tags */
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 10px; }
.tag {
  font-size: 11px; font-weight: 600; letter-spacing: .3px;
  padding: 4px 10px; border-radius: 999px;
  background: #f0e9fb; color: var(--purple);
  border: 1px solid #e2d6f6;
}

/* Filter controls */
.pod-controls {
  max-width: 900px; margin: 20px auto 26px;
  display: flex; flex-direction: column; gap: 16px; align-items: center;
}
.pod-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.chip {
  font: inherit; font-size: 13px; font-weight: 600;
  padding: 7px 15px; border-radius: 999px; cursor: pointer;
  background: #fff; color: var(--purple);
  border: 1px solid #e2d6f6;
  transition: background .2s ease, color .2s ease, transform .15s ease, box-shadow .2s ease;
}
.chip:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(124,58,237,.18); }
.chip.active {
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #fff; border-color: transparent;
}
.no-results {
  text-align: center; color: #777; font-style: italic; margin: 20px 0 40px;
}

/* Staggered reveal for grid cards */
.episode-grid .episode.reveal {
  transition-delay: calc(var(--i, 0) * 70ms);
}

@media (prefers-reduced-motion: reduce) {
  .video-wrap.ctp:hover .thumb { transform: none; }
  .video-wrap.ctp:hover .play-btn { transform: translate(-50%, -50%); }
  .episode-grid .episode.reveal { transition-delay: 0ms; }
}