:root {
  --quartz: #f4f7fb;
  --quartz-deep: #e4ebf3;
  --ink: #152033;
  --muted: #4a5870;
  --emerald: #0f9f7a;
  --emerald-glow: #3dffa8;
  --violet: #6d28d9;
  --violet-soft: #a78bfa;
  --cyan: #22d3ee;
  --silver: #f8fafc;
  --line: rgba(109, 40, 217, 0.22);
  --glass: rgba(255, 255, 255, 0.58);
  --shadow: 0 18px 50px rgba(21, 32, 51, 0.12);
  --radius: 1.25rem;
  --font: "IBM Plex Sans Thai", "Outfit", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 480px at 10% -10%, rgba(61, 255, 168, 0.28), transparent 55%),
    radial-gradient(900px 420px at 90% 0%, rgba(167, 139, 250, 0.32), transparent 50%),
    radial-gradient(700px 380px at 70% 100%, rgba(34, 211, 238, 0.18), transparent 55%),
    var(--quartz);
  line-height: 1.7;
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--violet);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--emerald);
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 20;
  background: var(--silver);
  padding: 0.5rem 0.8rem;
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 8;
  backdrop-filter: blur(16px);
  background: rgba(244, 247, 251, 0.72);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
}

.mark {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.mark-crystal {
  width: 1.15rem;
  height: 1.7rem;
  background: linear-gradient(160deg, var(--cyan), var(--emerald-glow) 45%, var(--violet-soft));
  clip-path: polygon(50% 0, 100% 38%, 50% 100%, 0 38%);
  box-shadow: 0 0 16px rgba(61, 255, 168, 0.55);
}

.nav-toggle {
  border: 1px solid var(--line);
  background: var(--glass);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font: inherit;
  cursor: pointer;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.site-nav a[aria-current="page"] {
  color: var(--violet);
  box-shadow: inset 0 -2px 0 var(--emerald-glow);
}

.stage {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.75fr);
  min-height: 78vh;
  border-bottom: 1px solid var(--line);
}

.stage-photo {
  position: relative;
  overflow: hidden;
}

.stage-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 28rem;
}

.stage-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(61, 255, 168, 0.18), transparent 40%),
    linear-gradient(to top, rgba(21, 32, 51, 0.35), transparent 45%);
  pointer-events: none;
}

.stage-caption {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(232, 235, 255, 0.55));
  border-left: 1px solid var(--line);
  padding: 2.4rem 1.8rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1rem;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
}

h1, h2, h3 {
  line-height: 1.25;
  font-weight: 700;
  margin: 0 0 0.7rem;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.55rem);
}

h2 {
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
}

.lede {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.section {
  padding: 4rem 0;
}

.crystal-panel {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  position: relative;
  overflow: hidden;
}

.crystal-panel::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 140%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--emerald-glow), var(--violet-soft), transparent);
  opacity: 0.85;
}

.pad {
  padding: 1.4rem 1.5rem 1.6rem;
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 1.2rem;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card-img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
}

.meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1.25rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  color: #06251c;
  background: linear-gradient(120deg, var(--emerald-glow), var(--cyan));
  position: relative;
  overflow: hidden;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn-pulse::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.7), transparent 55%);
  transform: scale(0);
  opacity: 0;
}

.btn-pulse:active::after,
.btn-pulse.is-pulse::after {
  animation: crystal-pulse 0.7s ease-out;
}

@keyframes crystal-pulse {
  0% { transform: scale(0); opacity: 0.9; }
  100% { transform: scale(1.2); opacity: 0; }
}

.quote {
  margin: 0;
  font-size: 1.05rem;
}

.quote-meta {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.prose p {
  margin: 0 0 1rem;
}

.form {
  display: grid;
  gap: 0.9rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-weight: 500;
}

input, select, textarea {
  font: inherit;
  padding: 0.7rem 0.8rem;
  border-radius: 0.75rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
}

.field-error,
.island-error {
  color: #9f1239;
  margin: 0;
  font-size: 0.9rem;
}

.form-success {
  background: rgba(61, 255, 168, 0.2);
  border-radius: 0.9rem;
  padding: 1rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 1.5rem;
  background: rgba(255, 255, 255, 0.35);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 1.4rem;
}

.footer-brand,
.footer-label {
  font-weight: 700;
  margin: 0 0 0.4rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-copy {
  margin: 1.6rem auto 0;
  color: var(--muted);
}

.cookie {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 12;
  background: rgba(244, 247, 251, 0.92);
  backdrop-filter: blur(18px);
  border-top: 1px solid var(--line);
}

.cookie-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: 1rem 0;
  align-items: center;
}

.cookie-actions {
  display: flex;
  gap: 0.5rem;
}

.legal-list {
  padding-left: 1.1rem;
}

.hero-page img {
  width: 100%;
  max-height: 22rem;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-404 {
  min-height: 50vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1rem;
}

@media (max-width: 900px) {
  .stage,
  .grid-3,
  .grid-2,
  .footer-grid,
  .cookie-inner {
    grid-template-columns: 1fr;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: rgba(244, 247, 251, 0.96);
    border-bottom: 1px solid var(--line);
    padding: 0.8rem 1rem 1rem;
  }

  .site-nav[hidden] {
    display: none !important;
  }

  .site-nav ul {
    flex-direction: column;
  }

  .header-inner {
    flex-wrap: wrap;
  }
}

@media (min-width: 901px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block !important;
  }
}