/* ============================================
   天機閣 — Shared Stylesheet
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* Colors */
  --color-bg: #faf5ee;
  --color-surface: #ffffff;
  --color-surface-hover: #f5efe6;
  --color-primary: #c9a84c;
  --color-primary-light: #e8d48b;
  --color-secondary: #8b2500;
  --color-secondary-light: #d4553a;
  --color-accent: #b8860b;
  --color-text: #2a1810;
  --color-text-muted: #6b5c4f;
  --color-border: rgba(201, 168, 76, 0.3);
  --gradient-hero: linear-gradient(
    135deg,
    #1a0f08 0%,
    #2a1510 50%,
    #1a0f08 100%
  );
  --glow: 0 0 20px rgba(201, 168, 76, 0.3);

  /* Typography */
  --font-heading: "Noto Serif TC", serif;
  --font-body: "Noto Sans TC", sans-serif;
  --font-english: "Cinzel", serif;
  --font-english-body: "Inter", sans-serif;

  --font-size-h1: clamp(2rem, 5vw, 3.5rem);
  --font-size-h2: clamp(1.5rem, 3vw, 2.5rem);
  --font-size-h3: clamp(1.2rem, 2.5vw, 1.8rem);
  --font-size-h4: 1.25rem;
  --font-size-h5: 1.1rem;
  --font-size-h6: 1rem;
  --font-size-body: 1rem;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 70px;
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --border-radius-xs: 4px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

ul,
ol {
  list-style: none;
}

/* ---------- Typography ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-h1);
}
h2 {
  font-size: var(--font-size-h2);
}
h3 {
  font-size: var(--font-size-h3);
}
h4 {
  font-size: var(--font-size-h4);
}
h5 {
  font-size: var(--font-size-h5);
}
h6 {
  font-size: var(--font-size-h6);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-muted);
  line-height: 1.8;
}

.text-gold {
  color: var(--color-primary);
}

.text-gradient {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-light)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Navigation ---------- */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(42, 21, 16, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.2);
  height: var(--nav-height);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
}

.logo-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-links li a {
  color: #b8a898;
  font-size: 0.95rem;
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-xs);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links li a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

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

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

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #f0e6d3;
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Buttons ---------- */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 32px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  border: 2px solid transparent;
  line-height: 1.4;
}

.btn-primary {
  background: var(--color-primary);
  color: #1a0f08;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: #1a0f08;
  box-shadow: var(--glow);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 10px rgba(201, 168, 76, 0.2);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: #1a0f08;
  box-shadow: var(--glow);
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: translateY(0);
  box-shadow: 0 0 10px rgba(201, 168, 76, 0.2);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.875rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--glow);
  transform: translateY(-4px);
}

.card img {
  width: 100%;
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-lg);
  object-fit: cover;
}

.card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

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

/* ---------- Forms ---------- */
label {
  display: block;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-xs);
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  outline: none;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.6;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23c9a84c' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: url("../images/hero-bg.png") center/cover no-repeat;
  padding: 0 var(--spacing-xl);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(26, 15, 8, 0.05) 0%,
    rgba(26, 15, 8, 0.25) 50%,
    rgba(26, 15, 8, 0.55) 100%
  );
  z-index: 1;
}

.hero-bg,
.hero-mystical {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: calc(var(--nav-height, 70px) + 4rem) 2rem 4rem;
}

.hero h1 {
  font-family: "Noto Serif TC", serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  color: #c9a84c;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  color: #e8d48b;
  margin-bottom: 1rem;
  font-weight: 300;
  letter-spacing: 0.1em;
}

.hero-desc,
.hero p:not(.hero-subtitle) {
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  color: rgba(240, 230, 211, 0.85);
  margin-bottom: 2.5rem;
  line-height: 1.8;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

/* Hero Small (for sub-pages) */
.hero-small {
  min-height: 45vh;
}

.hero-small .hero-content {
  padding: calc(var(--nav-height, 70px) + 3rem) 2rem 3rem;
}

.hero-small h1 {
  font-size: clamp(2rem, 4vw, 3rem);
}

/* ---------- Grid / Layout ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

section {
  padding: var(--spacing-3xl) 0;
}

section:nth-of-type(even) {
  background-color: #f0ebe3;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

/* ---------- Section Titles ---------- */
.section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.section-title p {
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Footer ---------- */
.main-footer {
  background: #1a0f08;
  border-top: 1px solid rgba(201, 168, 76, 0.2);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  color: #f0e6d3;
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  text-align: center;
}

.footer-brand {
  margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  color: #b8a898;
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-2xl);
}

.footer-links a {
  color: #b8a898;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(201, 168, 76, 0.2);
  padding-top: var(--spacing-xl);
}

.footer-bottom p {
  color: #b8a898;
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* ---------- Utilities ---------- */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}
.mb-2 {
  margin-bottom: var(--spacing-md);
}
.mb-3 {
  margin-bottom: var(--spacing-xl);
}
.mb-4 {
  margin-bottom: var(--spacing-3xl);
}

.mt-1 {
  margin-top: var(--spacing-sm);
}
.mt-2 {
  margin-top: var(--spacing-md);
}
.mt-3 {
  margin-top: var(--spacing-xl);
}
.mt-4 {
  margin-top: var(--spacing-3xl);
}

.hidden {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Animations / Keyframes ---------- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    box-shadow: 0 0 10px rgba(201, 168, 76, 0.2);
  }
  50% {
    box-shadow: 0 0 25px rgba(201, 168, 76, 0.4);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

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

.animate-fadeIn {
  animation: fadeIn 0.6s ease forwards;
}

.animate-slideUp {
  animation: slideUp 0.6s ease forwards;
}

.animate-glow {
  animation: glowPulse 2s ease-in-out infinite;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

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

/* ---------- CTA Section ---------- */
.cta-section {
  text-align: center;
  padding: 4rem 1rem;
}

.cta-section .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ---------- Scroll Reveal (JS toggle) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

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

/* ---------- Pricing (shared) ---------- */
.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-2xl);
  text-align: center;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-normal);
  position: relative;
}

.pricing-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--glow);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: var(--glow);
}

.pricing-card.featured::before {
  content: "推薦";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #1a0f08;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
}

.pricing-card .price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-primary);
  margin: var(--spacing-lg) 0;
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-card ul {
  text-align: left;
  margin-bottom: var(--spacing-xl);
}

.pricing-card ul li {
  padding: var(--spacing-sm) 0;
  color: var(--color-text-muted);
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
  font-size: 0.95rem;
}

.pricing-card ul li::before {
  content: "";
  display: inline-block;
  width: 1em;
  height: 1em;
  margin-right: var(--spacing-sm);
  vertical-align: -0.15em;
  background: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5 12l5 5L20 7' stroke='%23c9a84c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    no-repeat center/contain;
}

/* ---------- FAQ Accordion ---------- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  background: var(--color-surface-hover);
  border: none;
  color: var(--color-text);
  padding: var(--spacing-lg) var(--spacing-xl);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: #ebe5da;
}

.faq-question::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--color-primary);
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-question::after {
  content: "\2212";
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 var(--spacing-xl) var(--spacing-lg);
}

/* ---------- Testimonials ---------- */
.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.testimonial-card .stars {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.testimonial-card .quote {
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

.testimonial-card .author {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.9rem;
}

/* ---------- Steps / How It Works ---------- */
.step {
  text-align: center;
  padding: var(--spacing-xl);
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(201, 168, 76, 0.15);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 auto var(--spacing-lg);
}

/* ---------- Result Area ---------- */
.result-area {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.result-section {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.result-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

/* ---------- Score / Meter ---------- */
.score-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-primary);
  margin: 0 auto var(--spacing-lg);
  position: relative;
  animation: glowPulse 2s ease-in-out infinite;
}

/* ---------- Loading Spinner ---------- */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ---------- Bazi Page ---------- */
.bazi-form-section {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-xl);
}

.bazi-form-section .card {
  padding: var(--spacing-2xl);
}

.radio-group {
  display: flex;
  gap: var(--spacing-xl);
}

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.radio-label input[type="radio"] {
  accent-color: var(--color-primary);
  width: 18px;
  height: 18px;
}

.submit-row {
  text-align: center;
  margin-top: var(--spacing-xl);
}

.submit-row .btn-primary {
  min-width: 200px;
}

.btn-spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(26, 15, 8, 0.3);
  border-top-color: #1a0f08;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn-primary.is-loading .btn-spinner {
  display: inline-block;
}

.btn-primary.is-loading {
  pointer-events: none;
  opacity: 0.7;
}

/* Result Section */
.bazi-result {
  max-width: 900px;
  margin: 0 auto var(--spacing-3xl);
  padding: 0 var(--spacing-xl);
  display: none;
}

.bazi-result.visible {
  display: block;
  animation: fadeIn 0.6s ease;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.result-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  padding: var(--spacing-xl);
}

.result-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-h3);
}

.result-card.full-width {
  grid-column: 1 / -1;
}

/* Bazi Pillars */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  text-align: center;
}

.pillar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--spacing-lg) var(--spacing-sm);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.pillar-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.pillar-stem {
  font-size: 1.8rem;
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.3rem;
}

.pillar-branch {
  font-size: 1.8rem;
  font-family: var(--font-heading);
  color: var(--color-secondary-light);
  line-height: 1;
}

/* Five Elements Chart */
.elements-chart {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.element-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.element-name {
  width: 40px;
  font-size: 0.9rem;
  color: var(--color-text);
  text-align: right;
  flex-shrink: 0;
}

.element-bar-bg {
  flex: 1;
  height: 24px;
  background: #f0ebe3;
  border-radius: 12px;
  overflow: hidden;
}

.element-bar {
  height: 100%;
  border-radius: 12px;
  transition: width 1s ease;
  min-width: 8px;
}

.element-bar.metal {
  background: linear-gradient(90deg, #d4d4d8, #a1a1aa);
}
.element-bar.wood {
  background: linear-gradient(90deg, #22c55e, #16a34a);
}
.element-bar.water {
  background: linear-gradient(90deg, #3b82f6, #2563eb);
}
.element-bar.fire {
  background: linear-gradient(90deg, #ef4444, #dc2626);
}
.element-bar.earth {
  background: linear-gradient(90deg, #d97706, #b45309);
}

.element-value {
  width: 36px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* Personality / Fortune */
.content-text {
  color: var(--color-text);
  line-height: 1.8;
  font-size: 0.95rem;
}

.content-text p {
  color: var(--color-text);
}

/* Lucky Grid */
.lucky-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  text-align: center;
}

.lucky-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--spacing-lg);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.lucky-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.lucky-value {
  font-size: 1.3rem;
  font-family: var(--font-heading);
  color: var(--color-primary-light);
}

/* Error Toast */
.error-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #dc2626;
  color: white;
  padding: 1rem 2rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.95rem;
  z-index: 9999;
  opacity: 0;
  transition:
    transform 0.3s,
    opacity 0.3s;
  pointer-events: none;
}

.error-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ============================================
   RWD — Tablet (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 1.5rem;
    --spacing-2xl: 2rem;
    --spacing-3xl: 2.5rem;
    --nav-height: 60px;
  }

  /* Nav → hamburger */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: rgba(26, 15, 8, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    transition: right var(--transition-normal);
    border-left: 1px solid var(--color-border);
  }

  .nav-links.open {
    right: 0;
  }

  .nav-links li a {
    font-size: 1.1rem;
  }

  /* Grid → 2 col */
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Hero */
  .hero {
    min-height: 80vh;
  }

  /* Form row */
  .form-row {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-links {
    gap: var(--spacing-md);
  }

  /* Bazi */
  .result-grid {
    grid-template-columns: 1fr;
  }

  .pillars-grid {
    gap: var(--spacing-sm);
  }

  .bazi-form-section .card {
    padding: var(--spacing-lg);
  }
}

/* ============================================
   RWD — Mobile (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
  :root {
    --font-size-h1: 1.75rem;
    --font-size-h2: 1.35rem;
    --font-size-h3: 1.1rem;
    --font-size-h4: 1.05rem;
    --font-size-h5: 1rem;
    --font-size-h6: 0.95rem;
    --font-size-body: 0.95rem;
    --spacing-xl: 1.25rem;
    --spacing-2xl: 1.5rem;
    --spacing-3xl: 2rem;
    --nav-height: 56px;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  /* Grid → 1 col */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  /* Nav */
  .nav-container {
    padding: 0 var(--spacing-md);
  }

  .logo-text {
    font-size: 1.25rem;
  }

  .nav-links {
    width: 85%;
  }

  /* Hero */
  .hero {
    min-height: 70vh;
  }

  .hero-content {
    padding: calc(var(--nav-height, 56px) + 2rem) 1rem 2rem;
  }

  .hero-cta,
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn-primary,
  .hero-cta .btn-secondary,
  .hero-buttons .btn-primary,
  .hero-buttons .btn-secondary {
    width: 100%;
    max-width: 280px;
  }

  .hero-small {
    min-height: 35vh;
  }

  .hero-small .hero-content {
    padding: calc(var(--nav-height, 56px) + 1.5rem) 1rem 1.5rem;
  }

  /* Cards */
  .card {
    padding: var(--spacing-lg);
  }

  /* Buttons */
  .btn-primary,
  .btn-secondary {
    padding: 10px 24px;
    font-size: 0.9rem;
  }

  .btn-lg {
    padding: 12px 28px;
    font-size: 1rem;
  }

  /* Forms */
  input,
  select,
  textarea {
    padding: 10px 14px;
    font-size: 0.95rem;
  }

  /* Footer */
  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  /* Pricing */
  .pricing-card {
    padding: var(--spacing-lg);
  }

  .pricing-card .price {
    font-size: 2rem;
  }

  /* Score */
  .score-circle {
    width: 100px;
    height: 100px;
    font-size: 1.6rem;
  }

  /* Steps */
  .step-number {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }

  /* Result */
  .result-area {
    padding: var(--spacing-lg);
  }

  /* Bazi */
  .bazi-form-section {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .bazi-form-section .card {
    padding: var(--spacing-md);
  }

  .bazi-result {
    padding: 0 var(--spacing-md);
  }

  .result-card {
    padding: var(--spacing-md);
  }

  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }

  .pillar-stem,
  .pillar-branch {
    font-size: 1.4rem;
  }

  .lucky-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }

  .radio-group {
    gap: var(--spacing-md);
  }

  .element-name {
    width: 32px;
    font-size: 0.8rem;
  }

  .element-bar-bg {
    height: 20px;
  }
}

/* ---------- Name Analysis — Page-specific ---------- */

.optional-tag {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

.stroke-analysis {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  white-space: normal;
  text-align: center;
}

.score-total {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.score-number {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  text-shadow: var(--glow);
}

.score-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

.score-bars {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.score-bar {
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-primary-light)
  );
}

/* ============================================
   紫微斗數 — Ziwei Doushu Styles
   ============================================ */

/* Optional label */
.label-optional {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

/* Overview Grid */
.ziwei-overview .overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.overview-item {
  background: rgba(201, 168, 76, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--spacing-lg);
  text-align: center;
}

.overview-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-sm);
}

.overview-palace {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.overview-star {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-primary-light);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.overview-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* Twelve Palaces Grid */
.palaces-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.palace-cell {
  background: rgba(201, 168, 76, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: var(--spacing-md);
  transition:
    border-color 0.3s,
    box-shadow 0.3s;
}

.palace-cell:hover {
  border-color: var(--color-primary);
  box-shadow: var(--glow);
}

.palace-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.palace-stars {
  font-size: 0.9rem;
  color: var(--color-primary-light);
  margin-bottom: var(--spacing-sm);
}

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

/* Pattern Analysis */
.pattern-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.pattern-name {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--color-primary-light);
  font-weight: 700;
}

.pattern-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.pattern-badge.auspicious {
  background: rgba(76, 201, 100, 0.15);
  color: #4cc964;
  border: 1px solid rgba(76, 201, 100, 0.3);
}

.pattern-badge.inauspicious {
  background: rgba(201, 76, 76, 0.15);
  color: #c94c4c;
  border: 1px solid rgba(201, 76, 76, 0.3);
}

.pattern-desc {
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ---- Ziwei Tablet (768px) ---- */
@media (max-width: 768px) {
  .palaces-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
  }

  .ziwei-overview .overview-grid {
    grid-template-columns: 1fr 1fr;
  }

  .palace-cell {
    padding: var(--spacing-sm);
  }

  .palace-desc {
    font-size: 0.8rem;
  }
}

/* ---- Ziwei Mobile (480px) ---- */
@media (max-width: 480px) {
  .palaces-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
  }

  .ziwei-overview .overview-grid {
    grid-template-columns: 1fr;
  }

  .palace-cell {
    padding: var(--spacing-sm);
  }

  .palace-name {
    font-size: 0.9rem;
  }

  .palace-stars {
    font-size: 0.8rem;
  }

  .palace-desc {
    font-size: 0.75rem;
  }

  .overview-star {
    font-size: 1.3rem;
  }

  .overview-desc {
    font-size: 0.85rem;
  }

  .pattern-header {
    flex-wrap: wrap;
  }
}