/* ============================================
   Taoist Pantheon — Celestial Design System — yiqidao.com
   Ethereal · Luminous · Transcendent
   ============================================ */

/* --- Custom Properties --- */
:root {
  /* Celestial palette — inspired by dawn mist over sacred mountains */
  --sky-pearl: oklch(0.97 0.01 270);
  --jade-mist: oklch(0.93 0.04 165);
  --cloud-white: oklch(0.98 0.005 270);
  --cinnabar-glow: oklch(0.65 0.18 35);
  --gold-brightness: oklch(0.82 0.14 85);
  --lotus-pink: oklch(0.78 0.10 350);
  --heaven-blue: oklch(0.72 0.10 240);
  --immortal-teal: oklch(0.70 0.10 185);
  --purple-dusk: oklch(0.55 0.12 295);
  --ink-dark: oklch(0.25 0.02 270);
  --ink-medium: oklch(0.45 0.02 270);
  --ink-light: oklch(0.60 0.02 270);
  --sacred-gradient: linear-gradient(135deg, oklch(0.95 0.05 270), oklch(0.95 0.06 200), oklch(0.96 0.04 340));
  
  /* Typography scale */
  --font-display: 'Cinzel Decorative', 'Noto Serif SC', serif;
  --font-heading: 'Cinzel', 'Noto Serif SC', serif;
  --font-body: 'Cormorant Garamond', 'Noto Serif SC', serif;
  --font-caption: 'EB Garamond', 'Noto Serif SC', serif;
  
  --fs-hero: clamp(2.8rem, 5vw + 1rem, 5rem);
  --fs-h1: clamp(2rem, 3vw + 0.5rem, 3.2rem);
  --fs-h2: clamp(1.5rem, 2vw + 0.4rem, 2.2rem);
  --fs-h3: clamp(1.15rem, 1.5vw + 0.3rem, 1.5rem);
  --fs-body: clamp(1rem, 0.8vw + 0.7rem, 1.15rem);
  --fs-small: clamp(0.85rem, 0.6vw + 0.6rem, 0.95rem);
  
  /* Spacing */
  --sp-xs: clamp(0.4rem, 0.5vw, 0.6rem);
  --sp-sm: clamp(0.8rem, 1vw, 1.2rem);
  --sp-md: clamp(1.2rem, 2vw, 2rem);
  --sp-lg: clamp(2rem, 3vw, 3.5rem);
  --sp-xl: clamp(3rem, 5vw, 6rem);
  --sp-2xl: clamp(4rem, 7vw, 9rem);
  
  /* Borders & Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 100px;
  
  /* Shadows — soft, celestial */
  --shadow-whisper: 0 2px 8px oklch(0.3 0.03 270 / 0.06);
  --shadow-glow: 0 4px 20px oklch(0.3 0.03 270 / 0.08);
  --shadow-celestial: 0 8px 40px oklch(0.3 0.04 270 / 0.10);
  --shadow-divine: 0 16px 60px oklch(0.3 0.05 270 / 0.12);
  
  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s var(--ease-out-expo);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--ink-dark);
  background: var(--sky-pearl);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* --- Decorative Background Mist --- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, oklch(0.95 0.04 200 / 0.3), transparent),
    radial-gradient(ellipse 60% 80% at 80% 90%, oklch(0.94 0.04 340 / 0.2), transparent),
    radial-gradient(ellipse 100% 50% at 50% 50%, oklch(0.96 0.03 165 / 0.15), transparent);
  pointer-events: none;
  z-index: 0;
}

body > * { position: relative; z-index: 1; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* --- Typography --- */
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: 0.02em;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

.font-display {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  letter-spacing: 0.06em;
}

.font-caption {
  font-family: var(--font-caption);
  font-style: italic;
  font-size: var(--fs-small);
  color: var(--ink-light);
}

/* --- Layout Utilities --- */
.container {
  width: min(1280px, 92%);
  margin-inline: auto;
}

.container-narrow {
  width: min(900px, 92%);
  margin-inline: auto;
}

.section-pad {
  padding-block: var(--sp-xl);
}

/* --- Navigation --- */
.nav-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  background: oklch(0.97 0.01 270 / 0.85);
  border-bottom: 1px solid oklch(0.90 0.02 270 / 0.5);
  padding: var(--sp-sm) 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  letter-spacing: 0.08em;
  color: var(--purple-dusk);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: var(--sp-md);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-medium);
  transition: color var(--transition-smooth);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--cinnabar-glow);
  transition: width var(--transition-smooth);
}

.nav-links a:hover { color: var(--cinnabar-glow); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--cinnabar-glow); }
.nav-links a.active::after { width: 100%; }

/* --- Hero Sections --- */
.hero {
  text-align: center;
  padding: var(--sp-2xl) 0 var(--sp-xl);
  position: relative;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  color: var(--ink-dark);
  margin-bottom: var(--sp-sm);
}

.hero .subtitle {
  font-family: var(--font-caption);
  font-size: clamp(1.1rem, 1.5vw, 1.4rem);
  color: var(--ink-light);
  max-width: 600px;
  margin-inline: auto;
  font-style: italic;
}

.hero .chinese-title {
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  color: var(--purple-dusk);
  opacity: 0.6;
  margin-bottom: var(--sp-xs);
  letter-spacing: 0.15em;
}

/* --- Decorative Separator --- */
.separator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  margin: var(--sp-lg) auto;
  max-width: 300px;
}

.separator::before,
.separator::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, oklch(0.75 0.08 295 / 0.3), transparent);
}

.separator .glyph {
  font-size: 1.2rem;
  color: var(--purple-dusk);
  opacity: 0.5;
}

/* --- Card Base --- */
.card {
  background: var(--cloud-white);
  border: 1px solid oklch(0.92 0.015 270 / 0.6);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
  box-shadow: var(--shadow-whisper);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* --- Deity Card (generic) --- */
.deity-card {
  background: var(--cloud-white);
  border: 1px solid oklch(0.92 0.015 270 / 0.5);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.deity-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-celestial);
}

.deity-card .card-visual {
  aspect-ratio: 3 / 4;
  background: var(--sacred-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.deity-card .card-visual .deity-icon {
  font-size: 4rem;
  opacity: 0.3;
  filter: drop-shadow(0 0 20px oklch(0.7 0.1 295 / 0.3));
}

.deity-card .card-body {
  padding: var(--sp-md);
  flex: 1;
}

.deity-card .card-body h3 {
  font-family: var(--font-heading);
  margin-bottom: var(--sp-xs);
}

.deity-card .card-body .chinese-name {
  font-size: var(--fs-small);
  color: var(--ink-light);
  margin-bottom: var(--sp-sm);
}

.deity-card .card-body p {
  font-size: var(--fs-small);
  color: var(--ink-medium);
  line-height: 1.65;
}

/* --- Tag / Pill --- */
.tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25em 0.8em;
  border-radius: var(--radius-pill);
  border: 1px solid oklch(0.85 0.04 270);
  color: var(--ink-medium);
  background: oklch(0.96 0.01 270);
  transition: all var(--transition-smooth);
}

.tag:hover {
  background: var(--cinnabar-glow);
  color: var(--cloud-white);
  border-color: var(--cinnabar-glow);
}

.tag.active {
  background: var(--cinnabar-glow);
  color: var(--cloud-white);
  border-color: var(--cinnabar-glow);
}

/* --- Footer --- */
.footer {
  text-align: center;
  padding: var(--sp-xl) 0 var(--sp-lg);
  border-top: 1px solid oklch(0.92 0.01 270);
  margin-top: var(--sp-2xl);
}

.footer p {
  font-family: var(--font-caption);
  font-size: var(--fs-small);
  color: var(--ink-light);
}

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

.animate-in {
  animation: fadeInUp 0.8s var(--ease-out-expo) both;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

/* Intersection Observer triggers */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links { gap: var(--sp-sm); }
  .nav-links a { font-size: 0.7rem; }
}

@media (max-width: 480px) {
  .nav-inner { flex-direction: column; gap: var(--sp-xs); }
  .nav-links { justify-content: center; }
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--sky-pearl); }
::-webkit-scrollbar-thumb {
  background: oklch(0.80 0.04 295);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: oklch(0.70 0.06 295); }

/* --- Selection --- */
::selection {
  background: oklch(0.78 0.10 350 / 0.25);
  color: var(--ink-dark);
}