/* ============================================
   LIFE MAP DESIGN SYSTEM
   Cosmic Luxury Editorial
   ============================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;0,700;1,400&family=DM+Mono:wght@300;400&family=Lora:ital,wght@0,400;0,600;1,400&family=Noto+Serif+TC:wght@300;400;600;700&display=swap');

/* ── Custom Properties (Dark Mode Default) ── */
:root {
  --bg-deep: #050510;
  --bg-surface: #0d0d2b;
  --bg-card: rgba(20, 20, 60, 0.55);
  --bg-card-hover: rgba(30, 30, 80, 0.7);
  --accent: #d4a853;
  --accent-light: #e8c87a;
  --accent-glow: rgba(212, 168, 83, 0.25);
  --accent-dim: rgba(212, 168, 83, 0.08);
  --text-primary: #e8e4dc;
  --text-secondary: #b0aca4;
  --text-muted: #6a6a8e;
  --border: rgba(212, 168, 83, 0.12);
  --border-bright: rgba(212, 168, 83, 0.3);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(212, 168, 83, 0.08);
  --radius: 16px;
  --radius-sm: 8px;
  --glass-blur: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: 'Noto Serif TC', 'Cormorant Garamond', serif;
  --font-body: 'Noto Serif TC', 'Lora', serif;
  --font-mono: 'DM Mono', monospace;
  --nav-height: 64px;
  --page-padding: clamp(16px, 5vw, 48px);
  --star-opacity: 0.6;
  --scrollbar-thumb: rgba(212, 168, 83, 0.3);
  --scrollbar-track: rgba(13, 13, 43, 0.5);
  --input-bg: rgba(20, 20, 60, 0.8);
  --toggle-bg: rgba(212, 168, 83, 0.15);
}

/* ── Light Mode ── */
[data-theme="light"] {
  --bg-deep: #f5f2ec;
  --bg-surface: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-card-hover: rgba(255, 255, 255, 0.9);
  --accent: #a0742e;
  --accent-light: #c4943e;
  --accent-glow: rgba(160, 116, 46, 0.15);
  --accent-dim: rgba(160, 116, 46, 0.05);
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5e;
  --text-muted: #8a8a9e;
  --border: rgba(160, 116, 46, 0.12);
  --border-bright: rgba(160, 116, 46, 0.25);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 40px rgba(160, 116, 46, 0.06);
  --star-opacity: 0;
  --scrollbar-thumb: rgba(160, 116, 46, 0.25);
  --scrollbar-track: rgba(245, 242, 236, 0.5);
  --input-bg: rgba(255, 255, 255, 0.9);
  --toggle-bg: rgba(160, 116, 46, 0.1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.8;
  overflow-x: hidden;
  transition: background var(--transition-slow), color var(--transition-slow);
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-light); }

/* ── Star Field Background ── */
.starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--star-opacity);
  transition: opacity var(--transition-slow);
}

.starfield::before,
.starfield::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.starfield::before {
  background:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.8) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 45%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 40% 15%, rgba(212,168,83,0.8) 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 65%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 30%, rgba(255,255,255,0.7) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 85% 80%, rgba(212,168,83,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 15% 75%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 50%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 10%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 35% 90%, rgba(255,255,255,0.3) 0%, transparent 100%);
  animation: starDrift 120s linear infinite;
}

.starfield::after {
  background:
    radial-gradient(1px 1px at 5% 50%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 20% 80%, rgba(212,168,83,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 45% 35%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 90%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 75% 55%, rgba(255,255,255,0.7) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 92% 40%, rgba(212,168,83,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 15%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 70%, rgba(255,255,255,0.3) 0%, transparent 100%);
  animation: starDrift 180s linear infinite reverse;
}

@keyframes starDrift {
  from { transform: translateY(0) translateX(0); }
  to { transform: translateY(-30px) translateX(20px); }
}

/* ── Page Wrapper ── */
.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--page-padding);
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  display: block;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Theme Toggle ── */
.theme-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--toggle-bg);
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--border-bright);
  transform: rotate(30deg);
  background: var(--accent-glow);
}

/* ── Mobile Menu ── */
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 12px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* ── Mobile Nav Overlay ── */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--bg-deep);
  padding-top: calc(var(--nav-height) + 24px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-links {
  list-style: none;
  padding: 0 var(--page-padding);
}

.mobile-nav-links a {
  display: block;
  padding: 16px 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  color: var(--accent);
  padding-left: 12px;
}

@media (max-width: 1024px) {
  .nav-links { display: none; }
  .menu-toggle { display: flex; }
  .mobile-nav { display: block; }
}

/* ── Main Content ── */
.main-content {
  padding-top: calc(var(--nav-height) + 32px);
  padding-bottom: 80px;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--page-padding);
}

.container-wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--page-padding);
}

/* ── Page Header ── */
.page-header {
  text-align: center;
  padding: 60px 0 48px;
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 50%, var(--accent) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 6s ease infinite;
  margin-bottom: 12px;
}

.page-header .subtitle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ── Section Titles ── */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: width var(--transition);
}

.section-title:hover::after {
  width: 100%;
}

.section-subtitle {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 32px;
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-bright);
  box-shadow: var(--shadow), var(--shadow-glow);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  font-size: 1.3rem;
  flex-shrink: 0;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

/* ── Tags ── */
.tag {
  display: inline-block;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: 100px;
  letter-spacing: 0.05em;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

/* ── Stars Rating ── */
.stars {
  color: var(--accent);
  font-size: 1rem;
  letter-spacing: 2px;
}

.stars .dim { opacity: 0.2; }

/* ── Data Table ── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 16px 0;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-bright);
}

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: top;
}

.data-table tr:hover td {
  color: var(--text-primary);
  background: var(--accent-dim);
}

/* ── Expandable Sections ── */
.expandable {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 12px;
  transition: all var(--transition);
}

.expandable:hover {
  border-color: var(--border-bright);
}

.expandable-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--bg-card);
  border: none;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.expandable-trigger:hover {
  background: var(--bg-card-hover);
}

.expandable-trigger .chevron {
  font-size: 0.8rem;
  color: var(--accent);
  transition: transform var(--transition);
}

.expandable.open .expandable-trigger .chevron {
  transform: rotate(180deg);
}

.expandable-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.expandable.open .expandable-content {
  max-height: 5000px;
}

.expandable-inner {
  padding: 0 24px 24px;
}

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar { display: none; }

.tab-btn {
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel {
  display: none;
  animation: fadeUp 0.4s ease forwards;
}

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

/* ── Timeline ── */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--border), var(--accent));
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.timeline-dot {
  position: absolute;
  left: -34px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-deep);
  border: 2px solid var(--accent);
  transition: all var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.timeline-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ── Progress Bar ── */
.progress-bar {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  z-index: 999;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ── Scroll Reveal Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Password Gate ── */
.gate {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background: var(--bg-deep);
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.gate.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.gate-content {
  text-align: center;
  max-width: 400px;
  padding: 0 var(--page-padding);
  animation: fadeUp 1s ease;
}

.gate-symbol {
  font-size: 3rem;
  margin-bottom: 24px;
  animation: pulse 3s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

.gate-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.1em;
}

.gate-subtitle {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 40px;
}

.gate-input-wrap {
  position: relative;
  margin-bottom: 16px;
}

.gate-input {
  width: 100%;
  padding: 16px 24px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: 0.3em;
  text-align: center;
  outline: none;
  transition: all var(--transition);
}

.gate-input::placeholder {
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.gate-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.gate-input.error {
  border-color: #e74c3c;
  animation: shake 0.5s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.gate-btn {
  padding: 14px 48px;
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
}

.gate-btn:hover {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 0 30px var(--accent-glow);
}

.gate-error-msg {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #e74c3c;
  margin-top: 12px;
  min-height: 20px;
}

/* ── Home Hero ── */
.hero {
  text-align: center;
  padding: 80px 0 60px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 100px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 300;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.9;
}

/* ── Navigation Cards (Home) ── */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.nav-card {
  display: block;
  padding: 32px;
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
}

.nav-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow), var(--shadow-glow);
}

.nav-card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.nav-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.nav-card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── AI Q&A ── */
.ai-section {
  margin-top: 48px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
}

.ai-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.ai-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: var(--bg-deep);
  font-size: 0.9rem;
}

.ai-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.ai-chat {
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: 16px;
  padding-right: 8px;
}

.ai-msg {
  margin-bottom: 16px;
  animation: fadeUp 0.4s ease;
}

.ai-msg-user {
  text-align: right;
}

.ai-msg-user .ai-msg-text {
  display: inline-block;
  padding: 10px 16px;
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: 16px 16px 4px 16px;
  color: var(--text-primary);
  font-size: 0.9rem;
  max-width: 80%;
}

.ai-msg-bot .ai-msg-text {
  display: inline-block;
  padding: 10px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 16px 16px 16px 4px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 80%;
  line-height: 1.7;
}

.ai-input-row {
  display: flex;
  gap: 8px;
}

.ai-input {
  flex: 1;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: all var(--transition);
}

.ai-input:focus {
  border-color: var(--accent);
}

.ai-send {
  padding: 12px 20px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: var(--bg-deep);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition);
}

.ai-send:hover {
  background: var(--accent-light);
}

/* ── Daily Fortune ── */
.fortune-card {
  background: linear-gradient(135deg, var(--bg-card), var(--accent-dim));
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  margin-bottom: 32px;
}

.fortune-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.fortune-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.6;
}

.fortune-detail {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── PDF Button ── */
.pdf-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
}

.pdf-btn:hover {
  background: var(--accent);
  color: var(--bg-deep);
}

/* ── Footer ── */
.footer {
  text-align: center;
  padding: 40px var(--page-padding);
  border-top: 1px solid var(--border);
  margin-top: 80px;
}

.footer p {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  :root {
    --nav-height: 56px;
  }

  .card { padding: 24px; }
  .container { padding: 0 16px; }

  .page-header { padding: 40px 0 32px; }
  .page-header h1 { font-size: 1.8rem; }

  .hero { padding: 40px 0; }
  .hero h1 { font-size: 2rem; }

  .nav-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .data-table { font-size: 0.8rem; }
  .data-table th, .data-table td { padding: 6px 8px; }

  .timeline { padding-left: 32px; }

  .ai-input-row { flex-direction: column; }

  .expandable-trigger { padding: 14px 16px; font-size: 1rem; }
  .expandable-inner { padding: 0 16px 16px; }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Print Styles ── */
@media print {
  .starfield,
  .nav,
  .mobile-nav,
  .menu-toggle,
  .theme-toggle,
  .progress-bar,
  .gate,
  .ai-section,
  .pdf-btn,
  .nav-controls,
  .footer { display: none !important; }

  body {
    background: white !important;
    color: #1a1a1a !important;
    font-size: 11pt;
  }

  .card {
    background: white !important;
    border: 1px solid #ddd !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
    page-break-inside: avoid;
  }

  .main-content { padding-top: 0 !important; }

  .page-header h1 {
    -webkit-text-fill-color: #1a1a1a !important;
    background: none !important;
  }

  .section-title::after { display: none; }

  .expandable { border: 1px solid #ddd !important; }
  .expandable-content {
    max-height: none !important;
    overflow: visible !important;
  }
  .expandable-trigger { background: #f5f5f5 !important; }
  .chevron { display: none; }

  a { color: #1a1a1a !important; }
}

/* ── Utility ── */
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-32 { margin-top: 32px; }
.mb-16 { margin-bottom: 16px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.gap-24 { gap: 24px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

/* ============ PILLAR VISUAL ============ */
.pillars-visual {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}

.pillar {
  text-align: center;
  min-width: 80px;
}

.pillar.highlight {
  position: relative;
}

.pillar.highlight::after {
  content: '日主';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: var(--bg);
  padding: 0 6px;
}

.pillar-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.pillar-stem {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  border: 2px solid var(--border);
  border-radius: 8px;
  margin: 0 auto 4px;
}

.pillar-branch {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  border: 2px solid var(--border);
  border-radius: 8px;
  margin: 0 auto 8px;
}

.pillar-ten-god {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.pillar-stem.metal { color: #c9c9c9; border-color: #c9c9c940; }
.pillar-stem.water { color: #5b9bd5; border-color: #5b9bd540; }
.pillar-stem.earth { color: #d4a847; border-color: #d4a84740; }
.pillar-stem.wood { color: #6abf69; border-color: #6abf6940; }
.pillar-stem.fire { color: #e85d4a; border-color: #e85d4a40; }

.pillar-branch.metal { color: #c9c9c9; border-color: #c9c9c940; }
.pillar-branch.water { color: #5b9bd5; border-color: #5b9bd540; }
.pillar-branch.earth { color: #d4a847; border-color: #d4a84740; }
.pillar-branch.wood { color: #6abf69; border-color: #6abf6940; }
.pillar-branch.fire { color: #e85d4a; border-color: #e85d4a40; }

.pillar.highlight .pillar-stem {
  border-color: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}
/* ============ INDEX PAGE ============ */
.hero {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 0 48px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 6px 20px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  font-family: var(--font-display);
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border: none;
}

.btn-primary:hover {
  letter-spacing: 0.18em;
  box-shadow: 0 0 30px var(--accent-glow);
}

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

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.quick-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
  display: block;
}

.quick-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.quick-card-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.quick-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.quick-card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Section */
.section {
  padding: 32px 0;
}

/* AI Input */
.ai-input-wrap {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.ai-input {
  flex: 1;
  padding: 14px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.3s ease;
}

.ai-input:focus {
  border-color: var(--accent);
}

.ai-btn {
  padding: 14px 24px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 8px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.ai-btn:hover {
  box-shadow: 0 0 20px var(--accent-glow);
}

.ai-output {
  margin-top: 16px;
}

.ai-question {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.ai-answer {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
  padding: 20px;
  background: var(--bg);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}

.floating-buttons { position: fixed; ... }
.fab { width: 48px; ... }
.prompt-overlay { ... }
/* ============ FLOATING BUTTONS ============ */
.floating-buttons {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 900;
}

.fab {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  opacity: 0;
  transform: translateY(20px);
}

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

.fab:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.fab-prompt {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.fab-prompt:hover {
  box-shadow: 0 0 30px var(--accent-glow);
}

/* ============ PROMPT MODAL ============ */
.prompt-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.prompt-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.prompt-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  max-width: 680px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.prompt-overlay.open .prompt-card {
  transform: translateY(0);
}

.prompt-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.prompt-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}

.prompt-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.3s ease;
}

.prompt-close:hover { color: var(--text-primary); }

.prompt-textarea {
  width: 100%;
  min-height: 200px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color 0.3s ease;
}

.prompt-textarea:focus { border-color: var(--accent); }

.prompt-copy-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0;
}

.prompt-copy-btn {
  padding: 10px 24px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-family: var(--font-display);
  cursor: pointer;
  transition: all 0.3s ease;
}

.prompt-copy-btn:hover { box-shadow: 0 0 20px var(--accent-glow); }

.prompt-copied {
  font-size: 0.8rem;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.prompt-copied.show { opacity: 1; }

.prompt-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.prompt-ai-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.prompt-ai-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.prompt-ai-btn {
  padding: 10px 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.prompt-ai-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}