/* DigiX 2026 Sources — deck-theme tokens */
:root {
  --navy:    #0D1626;
  --navy-2:  #11203A;
  --navy-3:  #18253D;
  --gold:    #E8A23C;
  --cream:   #EDE7DB;
  --muted:   #8B909D;
  --rule:    rgba(237, 231, 219, 0.10);
  --link:    #F4B860;
  --link-hover: #FFD089;
  --max:     1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--navy);
  color: var(--cream);
  font-family: "Sarabun", "IBM Plex Sans Thai", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--link); text-decoration: none; word-break: break-word; }
a:hover { color: var(--link-hover); text-decoration: underline; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 64px;
  background:
    radial-gradient(ellipse at top right, rgba(232,162,60,0.07), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(232,162,60,0.04), transparent 50%),
    var(--navy);
}
.hero::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 24px;
  width: 72px;
  height: 4px;
  background: var(--gold);
}
.hero .eyebrow {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero h1 {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-weight: 700;
  font-size: clamp(34px, 5.5vw, 60px);
  line-height: 1.1;
  margin: 0 0 12px;
  color: var(--cream);
}
.hero .subtitle {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-style: italic;
  font-weight: 500;
  color: var(--gold);
  font-size: clamp(18px, 2vw, 22px);
  margin: 0 0 36px;
}
.hero .meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 36px;
}
.hero .meta span + span::before { content: "  ·  "; color: var(--rule); }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 48px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover { background: var(--link-hover); color: var(--navy); }
.btn-ghost { background: transparent; color: var(--cream); border-color: var(--rule); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn .arrow { font-size: 16px; line-height: 1; }

.nav-pills { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.nav-pills a {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.nav-pills a:hover { color: var(--gold); border-color: var(--gold); text-decoration: none; }

/* ---------- Section base ---------- */
section.block {
  padding: 64px 0;
  border-top: 1px solid var(--rule);
}
section.block h2 {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-weight: 700;
  font-size: clamp(24px, 3vw, 32px);
  margin: 0 0 8px;
  color: var(--cream);
}
section.block .section-eyebrow {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 8px;
}
section.block .section-lede {
  color: var(--muted);
  font-size: 15px;
  max-width: 70ch;
  margin: 0 0 32px;
}

/* ---------- Agenda ---------- */
.agenda-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.agenda-card {
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 20px 22px;
  background: var(--navy-2);
}
.agenda-card .label {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.agenda-card h3 {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--cream);
}
.agenda-card p { margin: 0; color: var(--muted); font-size: 14px; }
.agenda-card .duration { color: var(--gold); font-weight: 600; }

/* ---------- Sources ---------- */
.sources-section + .sources-section { padding-top: 32px; }

.sources-section h3 {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--gold);
  margin: 32px 0 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.source {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--rule);
}
.source:last-child { border-bottom: 1px solid var(--rule); }
.source .stamp {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-feature-settings: "tnum" 1;
  color: var(--gold);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
}
.source .stamp .slide-no {
  display: block;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 2px;
}
.source .body h4 {
  margin: 0 0 6px;
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--cream);
}
.source .body p { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.source .links { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; }
.source .links a::before { content: "→ "; color: var(--gold); }

/* ---------- Speaker ---------- */
.speaker {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: center;
  padding: 32px;
  border: 1px solid var(--rule);
  border-radius: 16px;
  background: var(--navy-2);
}
.speaker .name {
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--cream);
}
.speaker .role { color: var(--muted); margin: 0 0 12px; font-size: 14px; }
.speaker .contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 14px;
  color: var(--cream);
}
.speaker .contact a:hover { border-color: var(--gold); color: var(--gold); text-decoration: none; }
.speaker .contact img { width: 18px; height: 18px; }
.speaker .avatar {
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--navy-3);
  display: flex; align-items: center; justify-content: center;
  font-family: "IBM Plex Sans Thai", "Sarabun", sans-serif;
  font-weight: 700; font-size: 36px; color: var(--gold);
  border: 2px solid var(--gold);
}

/* ---------- Footer ---------- */
footer {
  padding: 48px 0 64px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 13px;
}
footer p { margin: 0 0 6px; }
footer .small { font-size: 12px; opacity: 0.7; }

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .hero { padding-top: 80px; padding-bottom: 48px; }
  .source { grid-template-columns: 1fr; gap: 4px; }
  .source .stamp { display: flex; gap: 12px; align-items: baseline; }
  .source .stamp .slide-no { display: inline; margin: 0; }
  .speaker { grid-template-columns: 1fr; text-align: center; padding: 24px; }
  .speaker .avatar { margin: 0 auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}