/* ═══════════════════════════════════════════════════
   STL Dragon Boat — Shared Design System
   All pages import this file for consistent styling.
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+Display:wght@700;900&family=Noto+Sans:wght@300;400;600&family=Noto+Serif+SC:wght@700&display=swap');

/* ── TOKENS ── */
:root {
  --red:          #D91F3A;
  --gold:         #F5C518;
  --gold-dark:    #C9A000;
  --ink:          #111318;
  --paper:        #F5F0E8;
  --water:        #0A3560;
  --water-light:  #1A6BBF;
  --mist:         #C8DFF5;
  --surface:      #1A1E28;
  --surface2:     #222736;
  --border:       rgba(255,255,255,0.15);
  color-scheme: dark;
}

html { background: #111318; }

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

body {
  background: #111318 !important;
  color: #F5F0E8 !important;
  font-family: 'Noto Sans', sans-serif;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── TYPOGRAPHY ── */
h1 {
  font-family: 'Noto Serif Display', serif;
  font-weight: 900;
  font-size: clamp(28px, 6vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}
h1 .accent {
  color: var(--gold);
  display: block;
  font-size: clamp(52px, 13vw, 120px);
}

h2 {
  font-family: 'Noto Serif Display', serif;
  font-weight: 700;
  font-size: clamp(24px, 5vw, 44px);
  line-height: 1.1;
  margin-bottom: 28px;
  color: var(--paper);
}

h3 {
  font-family: 'Noto Serif Display', serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--paper);
}

/* ── LAYOUT ── */
section {
  padding: 60px 20px;
  max-width: 960px;
  margin: 0 auto;
}
@media (max-width: 480px) {
  section { padding: 44px 16px; }
}

/* ── UTILITY ── */
.section-label {
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 10px;
  display: block;
  opacity: 0.9;
}

.divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dark), transparent);
  opacity: 0.35;
  max-width: 960px;
  margin: 0 auto;
}

.mt16 { margin-top: 16px; }
.mt32 { margin-top: 32px; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 28px;
  border-radius: 4px;
  font-family: 'Noto Sans', sans-serif;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
  min-height: 48px;
}
.btn:hover        { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.45); }
.btn-primary      { background: var(--red);  color: #fff; }
.btn-gold         { background: var(--gold); color: var(--ink); }
.btn-ghost        { background: transparent; color: var(--paper); border: 1.5px solid rgba(245,240,232,0.4); }
.btn-ghost:hover  { border-color: var(--gold); color: var(--gold); }

/* ── HERO (base) ── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(160deg, #0A3560 0%, #06264A 60%, #041830 100%);
  padding: 60px 20px 90px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    135deg,
    transparent,
    transparent 40px,
    rgba(255,255,255,0.025) 40px,
    rgba(255,255,255,0.025) 80px
  );
}

.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
}

/* ── RIPPLE ANIMATION ── */
.ripple {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(245,197,24,0.15);
  animation: expand 6s ease-out infinite;
  pointer-events: none;
}
.ripple:nth-child(1) { width: 300px;  height: 300px;  top: 50%; left: 50%; margin: -150px 0 0 -150px; animation-delay: 0s; }
.ripple:nth-child(2) { width: 600px;  height: 600px;  top: 50%; left: 50%; margin: -300px 0 0 -300px; animation-delay: 1.5s; }
.ripple:nth-child(3) { width: 900px;  height: 900px;  top: 50%; left: 50%; margin: -450px 0 0 -450px; animation-delay: 3s; }
.ripple:nth-child(4) { width: 1200px; height: 1200px; top: 50%; left: 50%; margin: -600px 0 0 -600px; animation-delay: 4.5s; }

@keyframes expand {
  0%   { transform: scale(0.2); opacity: 0; }
  20%  { opacity: 1; }
  100% { transform: scale(1);   opacity: 0; }
}

/* ── WAVE SVG ── */
.wave { position: absolute; bottom: -2px; left: 0; width: 100%; }

/* ── DRAGON EMOJI FLOAT ── */
.dragon-emoji {
  font-size: clamp(60px, 12vw, 100px);
  display: block;
  margin-bottom: 16px;
  animation: float 4s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

.chinese-subtitle {
  font-family: 'Noto Serif SC', serif;
  font-size: clamp(28px, 6vw, 52px);
  letter-spacing: 0.35em;
  color: var(--gold);
  opacity: 0.85;
  margin-bottom: 12px;
  display: block;
}

.tagline {
  font-size: clamp(13px, 2.2vw, 17px);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
  opacity: 0.75;
  margin: 20px 0 36px;
}

.cta-group {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

/* ── BACK NAV ── */
.back-nav {
  position: fixed;
  top: 16px;
  left: 20px;
  z-index: 100;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(245,240,232,0.6);
  text-decoration: none;
  background: rgba(17,19,24,0.7);
  backdrop-filter: blur(8px);
  padding: 8px 14px;
  border-radius: 4px;
  border: 1px solid var(--border);
  transition: color 0.15s, border-color 0.15s;
}
.back-link:hover { color: var(--gold); border-color: rgba(245,197,24,0.4); }

/* ── ANNOUNCEMENT CARD (used in announcements.html) ── */
.post-grid {
  display: grid;
  gap: 20px;
}

.post-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 28px 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px 24px;
  align-items: start;
  transition: border-color 0.15s, background 0.15s;
  text-decoration: none;
  color: inherit;
}
.post-card:hover { border-color: rgba(245,197,24,0.45); background: rgba(245,197,24,0.05); }

.post-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.post-type {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
}
.type-club     { background: rgba(26,107,191,0.3);  color: var(--water-light); border: 1px solid rgba(26,107,191,0.5); }
.type-openhouse{ background: rgba(245,197,24,0.15); color: var(--gold);         border: 1px solid rgba(245,197,24,0.4); }
.type-festival { background: rgba(217,31,58,0.2);   color: #FF6B81;             border: 1px solid rgba(217,31,58,0.45); }
.type-recap    { background: rgba(255,255,255,0.07); color: var(--paper);       border: 1px solid var(--border); }

.post-date { font-size: 12px; color: rgba(245,240,232,0.5); letter-spacing: 0.05em; }
.post-title { font-family: 'Noto Serif Display', serif; font-size: clamp(18px,3vw,24px); font-weight: 700; line-height: 1.25; margin-bottom: 8px; }
.post-summary { font-size: 14px; line-height: 1.65; color: rgba(245,240,232,0.72); }
.post-arrow { color: var(--gold); font-size: 22px; margin-top: 4px; opacity: 0.7; transition: opacity 0.15s, transform 0.15s; }
.post-card:hover .post-arrow { opacity: 1; transform: translateX(4px); }

/* ── FOOTER ── */
footer {
  background: rgba(0,0,0,0.6);
  text-align: center;
  padding: 28px 20px;
  font-size: 12px;
  color: rgba(245,240,232,0.4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}