:root {
  --bg0: #06141a;
  --bg1: #0a242e;
  --ink: #e8f4f2;
  --muted: #8fb4b0;
  --accent: #2dd4bf;
  --accent-2: #38bdf8;
  --line: rgba(94, 234, 212, 0.22);
  --font-display: "Outfit", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Outfit", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(1200px 600px at 12% -10%, #134e4a 0%, transparent 55%),
    radial-gradient(900px 500px at 90% 0%, #0c4a6e 0%, transparent 50%),
    linear-gradient(180deg, var(--bg1), var(--bg0) 48%, #040d11);
}

a { color: var(--accent-2); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(6, 20, 26, 0.72);
}

.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

.site-nav a[aria-current="page"],
.site-nav a:hover {
  color: var(--ink);
}

.hero {
  min-height: calc(100vh - 4.5rem);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: 1.5rem;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  animation: fade-up 0.7s ease both;
}

.hero-copy { max-width: 34rem; }

.brand-mark {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.06em;
  color: var(--accent);
  animation: fade-up 0.8s 0.05s ease both;
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.6vw, 2.35rem);
  line-height: 1.25;
  animation: fade-up 0.8s 0.12s ease both;
}

.lede {
  margin: 0 0 1.4rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
  max-width: 36rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  animation: fade-up 0.8s 0.2s ease both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn.primary {
  background: linear-gradient(135deg, #14b8a6, #0ea5e9);
  color: #042f2e;
  border: none;
}

.btn.primary:hover { color: #042f2e; filter: brightness(1.06); }

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-visual {
  animation: fade-up 0.9s 0.15s ease both;
}

.hero-svg {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.pulse-line {
  stroke-dasharray: 8 10;
  animation: dash 12s linear infinite;
}

.dot { animation: bob 2.8s ease-in-out infinite; }
.dot.d2 { animation-delay: 0.4s; }
.dot.d3 { animation-delay: 0.9s; }

.page {
  padding: clamp(1.75rem, 5vw, 3.25rem);
  max-width: 860px;
  margin: 0 auto;
  animation: fade-up 0.55s ease both;
}

.page h1 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.2rem);
}

.callout {
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(45, 212, 191, 0.08);
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.suite-list {
  display: grid;
  gap: 1.25rem;
}

.suite {
  padding: 1.15rem 0;
  border-top: 1px solid var(--line);
}

.suite h2 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.suite p { margin: 0 0 0.9rem; color: var(--muted); }

.contact-dl {
  margin: 1.5rem 0;
  display: grid;
  gap: 1.25rem;
}

.contact-dl dt {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.contact-dl dd {
  margin: 0;
  font-size: 1.35rem;
  font-family: var(--font-display);
  font-weight: 700;
}

.contact-dl a { color: var(--ink); text-decoration: none; }
.contact-dl a:hover { color: var(--accent); }

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

.site-footer {
  padding: 2rem clamp(1rem, 4vw, 2.5rem) 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.brand-inline {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ink);
}

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

.crumb {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.92rem;
}
.crumb a { color: var(--muted); text-decoration: none; }
.crumb a:hover { color: var(--accent); }

.teach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.25rem;
}
.teach-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  height: 100%;
  padding: 1.15rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  text-decoration: none;
  color: var(--ink);
  background: rgba(15, 76, 92, 0.28);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.teach-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--ink);
}
.teach-card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}
.teach-card-meta { color: var(--muted); font-size: 0.9rem; }
.teach-card-blurb {
  margin-top: 0.55rem;
  padding-top: 0.7rem;
  border-top: 1px solid rgba(94, 234, 212, 0.14);
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}
.teach-card-blurb-p {
  display: block;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.teach-card-blurb-p + .teach-card-blurb-p {
  margin-top: 0.65rem;
}

.teach-sub {
  margin: 0.75rem 0;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}
.teach-sub summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
}
.teach-video-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}
.teach-video-list li {
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(94, 234, 212, 0.12);
}
.teach-video-list.cover {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.85rem;
}
.teach-video-list.cover li { border: none; padding: 0; }
.teach-video-item {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  text-decoration: none;
  color: var(--ink);
}
.teach-video-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  background: #0a242e;
}
.teach-player video {
  width: 100%;
  max-height: 70vh;
  background: #000;
  border-radius: 10px;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

@keyframes dash {
  to { stroke-dashoffset: -240; }
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 2rem;
  }
  .hero-visual { order: -1; }
}