@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary-dark: #1a1a2e;
  --primary: #f8f9fa;
  --primary-light: #f1f3f5;
  --accent-gold: #d4850a;
  --accent-amber: #b45309;
  --accent-purple: #7c3aed;
  --accent-indigo: #4f46e5;
  --accent-orange: #dc5626;
  --text-white: #1e293b;
  --text-muted: #64748b;
  --glass-bg: rgba(0, 0, 0, 0.025);
  --glass-border: rgba(0, 0, 0, 0.08);
  /* Element colors */
  --el-kim: #555;
  --el-moc: #2e8b2e;
  --el-thuy: #1a6fc4;
  --el-hoa: #d63a2f;
  --el-tho: #c77b1a;
}

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

html { scroll-behavior: smooth; }

.tab-panel {
  display: none;
  animation: tabFade 0.45s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes tabFade {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

body {
  font-family: -apple-system, 'SF Pro Display', 'Inter', 'Segoe UI', sans-serif;
  background: #ffffff;
  color: var(--text-white);
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: -apple-system, 'SF Pro Display', 'Inter', 'Segoe UI', sans-serif; }

.stars-bg {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.stars-bg .star {
  position: absolute;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.08);
  animation: twinkle var(--duration, 3s) ease-in-out infinite alternate;
  opacity: 0;
}

@keyframes twinkle {
  0% { opacity: 0.1; transform: scale(0.8); }
  100% { opacity: var(--max-opacity, 0.8); transform: scale(1.2); }
}

/* Navigation */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--glass-border);
  transition: all 0.3s ease;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.nav-logo-icon {
  width: 44px;
  height: 44px;
  background-image: url('../img/logo-icon.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0;
  color: transparent;
}

.page-merge-section {
  scroll-margin-top: 88px;
}

.nav-logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: color 0.3s;
  position: relative;
  display: inline-block;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--accent-gold);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gold);
  transition: width 0.3s;
}

.nav-links a:hover::after, .nav-links a.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.6rem 1.5rem !important;
  background: #f5c542 !important;
  color: #1a1a2e !important;
  border-radius: 8px;
  font-weight: 600 !important;
  -webkit-text-fill-color: var(--primary-dark) !important;
  transition: transform 0.3s, box-shadow 0.3s !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(245, 197, 66, 0.4);
}

.nav-cta::after { display: none !important; }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 4rem;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

.hero-glow-1 {
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-purple);
}

.hero-glow-2 {
  bottom: -200px;
  right: -100px;
  background: var(--accent-gold);
  width: 400px;
  height: 400px;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--accent-gold);
  margin-bottom: 2rem;
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-gold);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  line-height: 1.15;
  margin-bottom: 1.5rem;
  font-weight: 800;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber), #c2410c);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  background: #f5c542;
  color: #1a1a2e;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 197, 66, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  background: var(--glass-bg);
  color: var(--text-white);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--glass-border);
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  font-family: inherit;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.hero-stat .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Section styling */
.section {
  position: relative;
  z-index: 10;
  padding: 6rem 1.5rem;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Glass card */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(20px);
  transition: all 0.3s;
}

.glass-card:hover {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

/* Features grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}

.feature-icon.gold { background: rgba(245, 197, 66, 0.15); }
.feature-icon.purple { background: rgba(139, 92, 246, 0.15); }
.feature-icon.blue { background: rgba(99, 102, 241, 0.15); }
.feature-icon.green { background: rgba(34, 197, 94, 0.15); }
.feature-icon.red { background: rgba(239, 68, 68, 0.15); }
.feature-icon.cyan { background: rgba(6, 182, 212, 0.15); }

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.feature-card p {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* Package upgrade block on xem-tuvi */
.package-upgrade-section {
  padding-top: 1.25rem !important;
  padding-bottom: 4rem;
}

.package-upgrade-header {
  margin-bottom: 2.25rem;
}

.package-upgrade-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.2;
}

.package-upgrade-header p {
  max-width: 760px;
  font-size: 1rem;
}

.package-upgrade-grid {
  align-items: stretch;
  gap: 1.25rem;
}

.package-upgrade-card {
  padding: 1.6rem;
}

.package-upgrade-card h3 {
  font-size: 1.22rem;
  margin-bottom: 0.6rem;
}

.package-upgrade-card p + p {
  margin-top: 0.45rem;
}

.package-upgrade-note {
  margin-top: 0.75rem !important;
  font-size: 0.9rem !important;
}

.package-upgrade-cta-card {
  display: flex;
  flex-direction: column;
}

.package-upgrade-cta-wrap {
  margin-top: auto;
  padding-top: 1rem;
}

/* Lunar page */
.lunar-lookup-card {
  padding: 1.25rem;
  max-width: 700px;
  margin: 0 auto;
}

.lunar-lookup-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1rem;
  align-items: end;
}

.lunar-header-compact {
  margin-bottom: 2rem;
}

.lunar-summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.lunar-summary-card h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.lunar-summary-card p {
  color: var(--text-muted);
  line-height: 1.5;
}

.lunar-table-card {
  margin-bottom: 1rem;
}

.lunar-table-card h3 {
  margin-bottom: 0.9rem;
}

.lunar-detail-table {
  width: 100%;
  border-collapse: collapse;
}

.lunar-detail-table th,
.lunar-detail-table td {
  border: 1px solid var(--glass-border);
  padding: 0.8rem;
  text-align: left;
  vertical-align: top;
}

.lunar-detail-table th {
  color: var(--accent-gold);
  font-size: 0.88rem;
  letter-spacing: 0.3px;
}

.lunar-two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.lunar-notes {
  margin: 0;
  padding-left: 1rem;
}

.lunar-notes li {
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0.35rem;
}

/* How it works */
.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  position: relative;
}

.step-card {
  text-align: center;
  position: relative;
}

.step-number {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
  position: relative;
}

.step-card h3 {
  font-family: inherit;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.step-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.testimonial-card {
  padding: 2rem;
}

.testimonial-stars {
  color: var(--accent-gold);
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.testimonial-text {
  color: var(--text-muted);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-indigo));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* CTA section */
.cta-section {
  text-align: center;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.06), rgba(212, 133, 10, 0.06));
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 4rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.cta-section h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--glass-border);
  padding: 4rem 1.5rem 2rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-top: 1rem;
  max-width: 300px;
}

.footer-column h4 {
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-white);
  margin-bottom: 1.2rem;
}

.footer-column a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
  transition: color 0.3s;
}

.footer-column a:hover { color: var(--accent-gold); }

.footer-bottom {
  max-width: 1200px;
  margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ============ Tử Vi Chart Page ============ */
.page-header {
  padding: 6.25rem 1.5rem 1.5rem;
  text-align: center;
  position: relative;
  z-index: 10;
}

.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Input form */
.tuvi-form-container {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 10;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input,
.form-group select {
  padding: 0.62rem 0.85rem;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  color: var(--text-white);
  font-size: 0.95rem;
  font-family: inherit;
  transition: all 0.3s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(245, 197, 66, 0.1);
}

.form-group select option {
  background: var(--primary);
  color: var(--text-white);
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.btn-submit {
  width: 100%;
  padding: 0.82rem;
  background: #f5c542;
  color: #1a1a2e;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  margin-top: 0.2rem;
  font-family: inherit;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 197, 66, 0.3);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Tử Vi Chart */
.tuvi-result {
  max-width: 1100px;
  margin: 3rem auto;
  padding: 0 1rem;
  position: relative;
  z-index: 10;
  display: none;
}

.tuvi-result.visible { display: block; }

/* Chart title bar */
.chart-title-bar {
  background: #fff;
  color: #222;
  padding: 1rem 1.5rem;
  border-radius: 12px 12px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid #ddd;
  border-bottom: none;
}

.chart-title-bar h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #222;
}

.chart-title-bar .chart-title-btn {
  background: var(--accent-orange);
  color: #fff;
  border: none;
  padding: 0.5rem 1.2rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

/* Main chart grid */
.chart-container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, auto);
  background: #fff;
  border: 1px solid #ccc;
  border-top: none;
  overflow: hidden;
}

.chart-cell {
  border: 1px solid #ddd;
  display: flex;
  flex-direction: column;
  min-height: 160px;
  position: relative;
  cursor: pointer;
  background: #fff;
  transition: background 0.2s;
}

.chart-cell:hover {
  background: #fef9f0;
}

/* Cell header: position abbreviation + palace name + đại hạn number */
.cell-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 4px 6px 3px;
  border-bottom: 1px solid #eee;
  background: #fafafa;
  min-height: 32px;
}

.cell-header-left {
  font-size: 0.65rem;
  color: #666;
  font-weight: 500;
}

.cell-header-palace {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-orange);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.cell-header-age {
  font-size: 0.7rem;
  color: #888;
  font-weight: 600;
  min-width: 20px;
  text-align: right;
}

/* Tuần / Triệt markers */
.cell-marker {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 700;
  color: #fff;
  background: var(--accent-orange);
  padding: 1px 5px;
  border-radius: 3px;
  margin-left: 4px;
  vertical-align: middle;
}

/* Cell body: stars */
.cell-body {
  flex: 1;
  padding: 4px 6px;
  display: flex;
  gap: 2px;
}

.cell-stars-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.cell-stars-aux {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.star-text {
  font-size: 0.68rem;
  line-height: 1.5;
  white-space: nowrap;
}

.star-text.is-major {
  font-weight: 700;
  font-size: 0.72rem;
}

.star-text .brightness {
  font-size: 0.58rem;
  opacity: 0.7;
  margin-left: 1px;
}

/* Element-based star colors */
.star-el-kim { color: var(--el-kim); }
.star-el-moc { color: var(--el-moc); }
.star-el-thuy { color: var(--el-thuy); }
.star-el-hoa { color: var(--el-hoa); }
.star-el-tho { color: var(--el-tho); }
.star-el-default { color: #444; }

/* Cell footer: branch + trường sinh + position */
.cell-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 3px 6px;
  border-top: 1px solid #eee;
  background: #fafafa;
  font-size: 0.62rem;
  color: #888;
}

.cell-footer-branch {
  font-weight: 600;
  color: #666;
}

.cell-footer-phase {
  color: #999;
  font-weight: 500;
}

.cell-footer-pos {
  color: #aaa;
  font-weight: 500;
}

/* Center cell */
.chart-cell.center {
  grid-column: 2 / 4;
  grid-row: 2 / 4;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: auto;
  cursor: default;
  border: 1px solid #ddd;
  background: #fff;
  padding: 1.5rem;
}

.chart-cell.center:hover { background: #fff; }

.center-info {
  width: 100%;
}

.center-info .center-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-orange);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.center-info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  color: #333;
}

.center-info-table td {
  padding: 3px 8px;
  text-align: left;
}

.center-info-table td:first-child {
  color: #888;
  font-weight: 500;
  white-space: nowrap;
  width: 65px;
}

.center-info-table td:last-child {
  font-weight: 600;
  color: #333;
}

.center-extra {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: #666;
  line-height: 1.6;
}

.center-extra span {
  font-weight: 600;
  color: #333;
}

/* Mệnh palace highlight */
.chart-cell.menh-palace {
  background: #fffbf5;
}

/* Chart legend bar */
.chart-legend {
  background: #fff;
  border: 1px solid #ccc;
  border-top: none;
  border-radius: 0 0 12px 12px;
  padding: 0.6rem 1rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem;
  font-size: 0.72rem;
  color: #666;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.legend-brightness {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.legend-brightness span {
  color: #888;
}

.legend-brightness b {
  color: #444;
  font-weight: 600;
}

/* AI Analysis */
.ai-analysis {
  margin-top: 2rem;
}

.analysis-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.analysis-tab {
  padding: 0.6rem 1.2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
  font-family: inherit;
}

.analysis-tab:hover { color: var(--text-white); }

.analysis-tab.active {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
  color: var(--primary-dark);
  border-color: transparent;
}

.analysis-content {
  min-height: 200px;
}

.analysis-panel {
  display: none;
  animation: fadeIn 0.5s ease;
  position: relative;
}

.analysis-panel.active { display: block; }

.analysis-panel.analysis-panel-locked .analysis-card {
  filter: blur(4px);
  user-select: none;
  pointer-events: none;
}

.analysis-lock-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.42);
  border-radius: 16px;
  z-index: 3;
}

.analysis-lock-inner {
  text-align: center;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 1rem 1.2rem;
  backdrop-filter: blur(6px);
}

.analysis-lock-inner p {
  margin-bottom: 0.75rem;
  color: var(--text-white);
  font-weight: 600;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.analysis-card {
  padding: 2rem;
  margin-bottom: 1rem;
}

.analysis-card h3 {
  font-family: inherit;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.analysis-card p, .analysis-card li {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 0.95rem;
}

.analysis-card ul {
  list-style: none;
  padding: 0;
}

.analysis-card li {
  padding: 0.3rem 0;
  padding-left: 1.2rem;
  position: relative;
}

.analysis-card li::before {
  content: '✦';
  position: absolute;
  left: 0;
  color: var(--accent-gold);
  font-size: 0.7rem;
}

.typing-indicator {
  display: inline-flex;
  gap: 4px;
  padding: 0.5rem 0;
}

.typing-indicator span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-gold);
  animation: typing 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.3; }
  30% { transform: translateY(-8px); opacity: 1; }
}

/* ============ Pricing Page ============ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.pricing-card {
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.pricing-card.popular {
  border-color: var(--accent-gold);
  background: rgba(245, 197, 66, 0.05);
}

.pricing-card.popular::before {
  content: 'PHỔ BIẾN';
  position: absolute;
  top: 12px;
  right: -30px;
  background: #f5c542;
  color: var(--primary-dark);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.3rem 2rem;
  transform: rotate(45deg);
  letter-spacing: 0.05em;
}

.pricing-coins {
  font-size: 0.85rem;
  color: var(--accent-gold);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-family: inherit;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.pricing-price .currency {
  font-size: 1rem;
  vertical-align: super;
  color: var(--text-muted);
}

.pricing-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 2rem;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin-bottom: 2rem;
  text-align: left;
}

.pricing-features li {
  padding: 0.5rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-features li .check {
  color: #4ade80;
  font-weight: 700;
}

.btn-pricing {
  width: 100%;
  padding: 0.8rem;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  font-family: inherit;
}

.btn-pricing.primary {
  background: #f5c542;
  color: var(--primary-dark);
  border: none;
}

.btn-pricing.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(245, 197, 66, 0.35);
}

.btn-pricing.outline {
  background: transparent;
  color: var(--text-white);
  border: 1px solid var(--glass-border);
}

.btn-pricing.outline:hover {
  background: var(--glass-bg);
  border-color: rgba(0, 0, 0, 0.15);
}

/* ============ About Page ============ */
.about-content {
  max-width: 900px;
  margin: 0 auto;
}

.about-section {
  margin-bottom: 3rem;
}

.about-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.about-section p {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.value-card {
  text-align: center;
  padding: 2rem;
}

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

.value-card h4 {
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.value-card p {
  font-size: 0.9rem;
}

/* Scroll animation */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.zalo-float-bubble {
  position: fixed;
  right: 18px;
  bottom: 20px;
  z-index: 120;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem 0.55rem 0.55rem;
  border-radius: 999px;
  background: #0068ff;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 10px 26px rgba(0, 104, 255, 0.32);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.zalo-float-bubble:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(0, 104, 255, 0.38);
}

.zalo-float-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff;
  color: #0068ff;
  font-size: 0.72rem;
  font-weight: 800;
}

.zalo-float-text {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.premium-fake-noti-host {
  position: fixed;
  left: 18px;
  bottom: 20px;
  z-index: 119;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.premium-fake-noti {
  max-width: min(360px, 82vw);
  background: rgba(16, 24, 40, 0.92);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 0.72rem 0.9rem;
  font-size: 0.85rem;
  line-height: 1.35;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.32);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.premium-fake-noti.show {
  opacity: 1;
  transform: translateY(0);
}

.ad-block {
  padding: 0.6rem 0.8rem;
  min-height: 72px;
}

.ad-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ad-block-top {
  max-width: 860px;
  margin: 0 auto;
}

.ad-block-web-top {
  margin-top: calc(72px + 8px);
  margin-bottom: 16px;
  max-width: 760px;
  padding: 0.25rem 0.45rem;
  height: 98px;
  overflow: hidden;
  position: relative;
}

.ad-block-web-top .adsbygoogle {
  width: 100%;
  height: 90px !important;
  min-height: 90px !important;
  max-height: 90px !important;
}

.ad-loading-placeholder {
  display: none;
  width: 100%;
  height: 90px;
  border-radius: 10px;
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.08) 20%,
    rgba(0, 0, 0, 0.14) 40%,
    rgba(0, 0, 0, 0.08) 60%
  );
  background-size: 220% 100%;
  animation: adShimmer 1.35s ease-in-out infinite;
}

.ad-block-web-top.ad-unfilled .adsbygoogle {
  display: none !important;
}

.ad-block-web-top.ad-pending .adsbygoogle {
  display: none !important;
}

.ad-block-web-top.ad-unfilled .ad-loading-placeholder {
  display: block;
}

.ad-block-web-top.ad-pending .ad-loading-placeholder {
  display: block;
}

.ad-block-web-top + .tab-panel .page-header {
  padding-top: 0;
  margin-top: 0;
}

.ad-block-web-top .ad-label {
  margin-bottom: 0.25rem;
}

.consent-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 125;
  display: none;
}

.consent-banner.show {
  display: block;
}

.consent-banner-inner {
  max-width: 860px;
  margin: 0 auto;
  background: rgba(16, 24, 40, 0.94);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  padding: 0.85rem 1rem;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.34);
}

.consent-banner-inner p {
  font-size: 0.86rem;
  line-height: 1.45;
  margin-bottom: 0.65rem;
}

.consent-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.55rem;
}

.btn-consent {
  border: none;
  border-radius: 8px;
  padding: 0.5rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.btn-consent.primary {
  background: #f5c542;
  color: #1a1a2e;
}

.btn-consent.secondary {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .mobile-menu-btn { display: block; }

  .ad-block-web-top {
    max-width: calc(100% - 1rem);
    padding: 0.2rem 0.35rem;
    margin-top: calc(72px + 8px);
    margin-bottom: 16px;
    height: 78px;
  }

  .ad-block-web-top .adsbygoogle {
    height: 70px !important;
    min-height: 70px !important;
    max-height: 70px !important;
  }

  .ad-loading-placeholder {
    height: 70px;
  }

  .ad-block-web-top .ad-label {
    display: none;
  }

  .ad-block-web-top + .tab-panel .page-header {
    padding: 0 1rem 0.75rem;
    margin-top: 0;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
  }

  .nav-links.open { display: flex; }

  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }

  .form-grid { grid-template-columns: 1fr; }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .footer-brand { grid-column: 1 / -1; }

  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }

  .chart-cell { min-height: 120px; }

  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 1rem; }
  .hero-stat .number { font-size: 1.5rem; }

  .chart-cell { min-height: 100px; }
  .cell-header-palace { font-size: 0.6rem; }
  .star-text { font-size: 0.55rem; }
  .star-text.is-major { font-size: 0.6rem; }
  .center-info-table { font-size: 0.7rem; }
  .center-info .center-title { font-size: 0.85rem; }
  .zalo-float-bubble {
    right: 12px;
    bottom: 14px;
    padding-right: 0.65rem;
  }
  .premium-fake-noti-host {
    left: 12px;
    bottom: 14px;
  }
  .zalo-float-text { font-size: 0.8rem; }
  .consent-actions { justify-content: stretch; }
  .btn-consent { flex: 1; }
}

/* Loading spinner */
.loading-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(255, 255, 255, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--glass-border);
  border-top-color: var(--accent-gold);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes adShimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

/* (menh-palace highlight moved to chart section above) */

/* Print styles */
@media print {
  .nav, .footer, .hero-buttons, .btn-submit, .ad-block { display: none; }
  body { background: white; color: black; }
  .chart-cell { border: 1px solid #ccc; }
}

.month-cal-table {
  font-size: 0.88rem;
}

.month-cal-table th {
  text-align: center;
  padding: 0.5rem 0.3rem;
  font-size: 0.8rem;
}

.month-cal-table td {
  text-align: center;
  padding: 0.45rem 0.25rem;
  vertical-align: top;
  min-width: 2.75rem;
}

.cal-day:hover {
  background: var(--glass-bg);
  border-radius: 8px;
}

.cal-selected {
  background: rgba(212, 133, 10, 0.12) !important;
  border-radius: 8px;
  font-weight: 600;
}

.cal-solar {
  font-weight: 700;
  font-size: 1.55rem;
  line-height: 1.1;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.cal-lunar {
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 0.2rem;
  line-height: 1.2;
  opacity: 0.85;
}