@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700&display=swap');

/* ===== SURPO Global Design System ===== */
:root {
  --bg: #0C0C0C;
  --background: #0C0C0C;
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --text-main: #FFFFFF;
  --text: #FFFFFF;
  --text-60: rgba(255, 255, 255, 0.6);
  --text-35: rgba(255, 255, 255, 0.35);
  --text-muted: rgba(255, 255, 255, 0.6);
  --accent: #E6C97A;
  --accent-glow: rgba(230, 201, 122, 0.15);
  --primary: #E6C97A;
  --secondary: #D9BC62;
  --glass-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.6);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Kanit', sans-serif;
}

body {
  background: radial-gradient(ellipse 120% 80% at 50% -20%, #1a1408 0%, #0C0C0C 45%, #050505 100%);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Smooth flowing premium background — gold & black */
body::before,
body::after {
  content: "";
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background:
    radial-gradient(circle at 35% 35%, rgba(230, 201, 122, 0.2) 0%, transparent 42%),
    radial-gradient(circle at 65% 65%, rgba(201, 160, 68, 0.14) 0%, transparent 40%);
  animation: gentleFloatGold 24s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate;
}

body::after {
  background:
    radial-gradient(circle at 65% 35%, rgba(139, 105, 20, 0.16) 0%, transparent 40%),
    radial-gradient(circle at 25% 75%, rgba(250, 237, 192, 0.06) 0%, transparent 35%);
  animation: gentleFloatAmber 28s cubic-bezier(0.4, 0, 0.2, 1) infinite alternate-reverse;
}

@keyframes gentleFloatGold {
  0%   { transform: translate(2%, 2%) scale(0.95); }
  33%  { transform: translate(-3%, 4%) scale(1.05); }
  66%  { transform: translate(4%, -2%) scale(1); }
  100% { transform: translate(-2%, -3%) scale(0.95); }
}

@keyframes gentleFloatAmber {
  0%   { transform: translate(-4%, -2%) scale(1); }
  33%  { transform: translate(3%, 3%) scale(0.95); }
  66%  { transform: translate(-2%, 5%) scale(1.05); }
  100% { transform: translate(2%, -4%) scale(1); }
}

h1, h2, h3 {
  font-family: 'Kanit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.4;
}

/* Logo */
.logo-text, .surpo-logo {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  flex-shrink: 0;
}

.logo {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

/* Glass */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: rgba(230, 201, 122, 0.25);
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #FAEDC0 0%, #E6C97A 48%, #D9BC62 100%);
  color: #0D0D0D;
  border: none;
  padding: 12px 28px;
  border-radius: 10px;
  font-weight: 700;
  font-family: 'Kanit', sans-serif;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.25s ease;
  text-decoration: none;
  font-size: 1rem;
  box-shadow: none;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FFF3D4 0%, #EBD088 48%, #E0C56E 100%);
  transform: translateY(-1px);
  color: #0D0D0D;
  box-shadow: none;
}

.btn-primary .material-symbols-rounded {
  color: #0D0D0D;
}

.btn-secondary, .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--glass);
  color: var(--text);
  border: 1px solid var(--glass-border);
  padding: 12px 28px;
  border-radius: 10px;
  font-weight: 500;
  font-family: 'Kanit', sans-serif;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  font-size: 1rem;
  box-shadow: none;
}

.btn-secondary:hover, .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  transform: translateY(-1px);
  box-shadow: none;
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fadeInUp 0.8s ease forwards; }

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

header {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-section { padding: 100px 0; text-align: center; }

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.2;
  margin-bottom: 24px;
  color: var(--text);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  font-weight: 300;
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-top: 60px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--glass-border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.2); }

@media (max-width: 768px) {
  html { font-size: 15px; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; padding: 0 10px; }
  .hero-section { padding: 60px 0; }
  .btn-primary, .btn-secondary { font-size: 0.9rem; padding: 10px 20px; }
  .container { padding: 0 1rem; }
  .glass-card { padding: 1.5rem; }
  header { height: 64px; }
  .template-grid { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 480px) {
  html { font-size: 14px; }
  .glass-card { padding: 1.2rem; border-radius: 16px; }
  .container { padding: 0 0.8rem; }
}