/* Daoist Arts - Global Styles · Dark Mystical Theme */
/* Using system fonts only — no external Google Fonts dependency (blocked in China).
   We select the most ancient-looking serif fonts available per OS:
   - Windows: Georgia (default serif), Palatino Linotype
   - macOS: Palatino, Baskerville
   - Linux: FreeSerif, serif
   Fallback chain ensures graceful degradation everywhere. */

:root {
  --gold: #D4AF37;
  --gold-dim: #A68A2E;
  --gold-pale: #E8D48B;
  --cinnabar: #C2362A;
  --cinnabar-dark: #8B1A1A;
  --cinnabar-glow: rgba(194,54,42,0.45);
  --deep-purple: #1a0a2e;
  --dark: #0a0a12;
  --dark-soft: #12101a;
  --dark-card: rgba(16,12,26,0.92);
  --text-primary: #E8E0D0;
  --text-dim: rgba(232,224,208,0.65);
  --text-muted: rgba(232,224,208,0.35);
  --text-subtle: rgba(232,224,208,0.18);
  --card-bg: rgba(20,15,30,0.85);
  --card-border: rgba(212,175,55,0.15);
  --card-border-hover: rgba(212,175,55,0.4);
  --font-serif: 'Palatino Linotype', 'Georgia', 'Noto Serif TC', 'SimSun', serif;
  --font-ancient: 'Georgia', 'Palatino Linotype', 'Times New Roman', serif;
  --font-roman: 'Georgia', 'Palatino Linotype', 'Times New Roman', serif;
  --font-decorative: 'Georgia', 'Palatino Linotype', 'Times New Roman', serif;
  --font-body: 'Palatino Linotype', 'Georgia', 'Noto Serif TC', serif;
}

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

body {
  font-family: var(--font-serif);
  color: var(--text-primary);
  line-height: 1.8;
  overflow-x: hidden;
}

/* ── Cloud / Mist background texture ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(100,40,120,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(100,40,120,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(212,175,55,0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 30% 70%, rgba(194,54,42,0.06) 0%, transparent 40%),
    var(--dark);
}

/* ── Rich auspicious pattern overlay: Bagua + idioms + coins ── */
.pattern-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
  background-image: url('../images/bg-pattern.svg');
  background-size: 600px 600px;
  pointer-events: none;
  animation: pattern-breathe 16s ease-in-out infinite;
}

@keyframes pattern-breathe {
  0%, 100% { opacity: 0.18; }
  50%      { opacity: 0.32; }
}

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to bottom, rgba(10,10,18,0.97), transparent);
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--gold);
  text-decoration: none;
}

.logo-seal {
  width: 42px;
  height: 42px;
  background: var(--cinnabar);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--gold);
  border: 2px solid var(--gold);
  box-shadow: 0 0 20px rgba(212,175,55,0.25);
}

.logo-text {
  font-family: var(--font-ancient);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--gold);
}

.nav-cta {
  padding: 0.6rem 1.5rem;
  background: transparent;
  border: 1px solid var(--gold);
  color: var(--gold);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  transition: all 0.3s ease;
}

.nav-cta:hover {
  background: rgba(212,175,55,0.15);
  box-shadow: 0 0 25px rgba(212,175,55,0.2);
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 700px;
  height: 700px;
  transform: translate(-50%, -50%);
  background:
    radial-gradient(circle at 30% 30%, rgba(212,175,55,0.06) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(194,54,42,0.05) 0%, transparent 50%);
  border-radius: 50%;
  animation: taiji 30s linear infinite;
  border: 1px solid rgba(212,175,55,0.08);
}

@keyframes taiji {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Mist layers */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(120,60,150,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 10%, rgba(120,60,150,0.06) 0%, transparent 50%);
  animation: mist 12s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes mist {
  from { opacity: 0.5; }
  to   { opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-family: var(--font-ancient);
  font-size: 4.2rem;
  font-weight: 400;
  color: var(--gold);
  margin-bottom: 0.5rem;
  letter-spacing: 0.06em;
  text-shadow: 0 0 60px rgba(212,175,55,0.3);
}

.hero-subtitle {
  font-family: var(--font-roman);
  font-size: 1.5rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
  letter-spacing: 0.25em;
}

.hero-tags {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.hero-tag {
  padding: 0.5rem 1.3rem;
  background: rgba(212,175,55,0.08);
  border: 1px solid rgba(212,175,55,0.3);
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.hero-cta {
  display: inline-block;
  padding: 1rem 3rem;
  background: var(--cinnabar);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  border: 1px solid var(--cinnabar);
  transition: all 0.3s ease;
}

.hero-cta:hover {
  background: transparent;
  color: var(--cinnabar);
  border-color: var(--cinnabar);
  box-shadow: 0 0 30px rgba(194,54,42,0.3);
}

/* ── Section title ── */
.section-title {
  text-align: center;
  font-family: var(--font-roman);
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 3rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  margin: 1rem auto 0;
}

/* ── Quote Section ── */
.quote-section {
  padding: 4.5rem 2rem;
  text-align: center;
  background: linear-gradient(to bottom, rgba(20,10,40,0.35), rgba(20,10,40,0.35));
  border-top: 1px solid rgba(212,175,55,0.1);
  border-bottom: 1px solid rgba(212,175,55,0.1);
}

.quote-text {
  font-size: 1.35rem;
  color: var(--gold);
  font-style: italic;
  max-width: 800px;
  margin: 0 auto;
  line-height: 2.2;
}

.quote-author {
  margin-top: 1.2rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ── Services Section ── */
.services-section {
  padding: 5rem 2rem;
  background: transparent;
}

.section-title {
  color: var(--gold);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.service-card {
  background: var(--card-bg);
  padding: 2rem;
  border: 1px solid var(--card-border);
  transition: all 0.35s ease;
  position: relative;
  backdrop-filter: blur(4px);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--card-border-hover);
  box-shadow: 0 12px 50px rgba(0,0,0,0.4), 0 0 30px rgba(212,175,55,0.08);
}

.service-card.featured {
  border: 1px solid var(--gold);
  background: linear-gradient(135deg, rgba(30,20,50,0.95), rgba(20,15,35,0.95));
}

.service-card.featured::before {
  content: 'VIP';
  position: absolute;
  top: -1px;
  right: -1px;
  background: var(--gold);
  color: var(--dark);
  padding: 0.3rem 0.8rem;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  font-weight: bold;
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.service-title {
  font-family: var(--font-roman);
  font-size: 1.3rem;
  color: var(--gold);
  margin-bottom: 0.5rem;
  letter-spacing: 0.04em;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
  min-height: 3rem;
}

.service-price {
  font-size: 1.5rem;
  color: var(--gold);
  font-weight: bold;
  margin-bottom: 1.5rem;
}

.service-price span {
  font-size: 0.9rem;
  font-weight: normal;
  color: var(--text-muted);
}

.service-btn {
  display: block;
  width: 100%;
  padding: 0.8rem;
  background: transparent;
  border: 1px solid var(--text-dim);
  color: var(--text-primary);
  text-align: center;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  transition: all 0.3s ease;
  cursor: pointer;
  font-family: var(--font-serif);
}

.service-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(212,175,55,0.06);
}

.service-card.featured .service-btn {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--dark);
}

.service-card.featured .service-btn:hover {
  background: transparent;
  color: var(--gold);
}

/* ── Books Section ── */
.books-section {
  padding: 5rem 2rem;
  background: linear-gradient(to bottom, rgba(10,10,18,0.6), rgba(20,10,40,0.4));
  border-top: 1px solid rgba(212,175,55,0.1);
}

.books-section .section-title {
  color: var(--gold);
}

.trust-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto 4rem;
  text-align: center;
}

.trust-pillar {
  padding: 1.5rem;
  border: 1px solid rgba(212,175,55,0.08);
}

.trust-pillar-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.trust-pillar-title {
  font-size: 1rem;
  color: var(--gold);
  margin-bottom: 0.3rem;
  letter-spacing: 0.05em;
}

.trust-pillar-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.books-column h3 {
  font-family: var(--font-roman);
  color: var(--gold);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212,175,55,0.2);
  letter-spacing: 0.1em;
}

.book-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.book-icon {
  font-size: 1.5rem;
}

.book-info h4 {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
  font-weight: normal;
}

.book-info p {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ── Trust Bar ── */
.trust-bar {
  padding: 2rem;
  background: var(--cinnabar-dark);
  text-align: center;
}

.trust-items {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.trust-item {
  color: var(--text-primary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.trust-item::before {
  content: '✓';
  color: var(--gold);
  font-weight: bold;
}

/* ── Contact Section ── */
.contact-section {
  padding: 5rem 2rem;
  text-align: center;
  background: transparent;
}

.contact-title {
  font-family: var(--font-roman);
  font-size: 2rem;
  color: var(--gold);
  margin-bottom: 1rem;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.contact-subtitle {
  color: var(--text-dim);
  margin-bottom: 3rem;
}

.contact-cards {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.contact-card {
  padding: 2rem 3rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  min-width: 200px;
}

.contact-card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.contact-card-title {
  font-size: 1.1rem;
  color: var(--gold);
  margin-bottom: 0.3rem;
}

.contact-card-handle {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.cta-main {
  display: inline-block;
  padding: 1.2rem 4rem;
  background: var(--gold);
  color: var(--dark);
  text-decoration: none;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  border: 2px solid var(--gold);
  transition: all 0.3s ease;
}

.cta-main:hover {
  background: transparent;
  color: var(--gold);
  box-shadow: 0 0 30px rgba(212,175,55,0.2);
}

/* ── Footer ── */
.footer {
  padding: 2rem;
  background: rgba(10,10,18,0.95);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid rgba(212,175,55,0.08);
}

.footer a {
  color: var(--gold);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.footer a:hover { opacity: 1; }

/* ── Universal card / container styles for subpages ── */
.content-card {
  background: var(--card-bg);
  padding: 2.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--card-border);
  backdrop-filter: blur(4px);
}

.content-card h2 {
  font-family: var(--font-roman);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--gold);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212,175,55,0.15);
  letter-spacing: 0.06em;
}

.content-card p {
  color: var(--text-dim);
  line-height: 1.9;
  margin-bottom: 1rem;
}

.content-card p:last-child { margin-bottom: 0; }

/* ── Gold divider ── */
.gold-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  margin: 2rem 0;
  opacity: 0.3;
}

/* ── Decorative corner accents ── */
.corner-accent {
  position: relative;
}

.corner-accent::before,
.corner-accent::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 30px;
  border-color: var(--gold);
  border-style: solid;
  opacity: 0.3;
  pointer-events: none;
}

.corner-accent::before {
  top: 0; left: 0;
  border-width: 1px 0 0 1px;
}

.corner-accent::after {
  bottom: 0; right: 0;
  border-width: 0 1px 1px 0;
}

/* ── Secondary button ── */
.btn-secondary {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: transparent;
  border: 1px solid var(--text-dim);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  transition: all 0.3s ease;
  cursor: pointer;
  font-family: var(--font-serif);
}

.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
  box-shadow: 0 0 20px rgba(212,175,55,0.15);
  background: rgba(212,175,55,0.06);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero h1         { font-size: 2.6rem; }
  .hero-subtitle   { font-size: 1rem; }
  .hero-tags       { flex-direction: column; align-items: center; }
  .trust-pillars   { grid-template-columns: 1fr; }
  .books-grid      { grid-template-columns: 1fr; }
  .trust-items     { flex-direction: column; gap: 1rem; }
}