/* ===================================================
   禾睿牙醫診所 — Global Stylesheet
   =================================================== */

:root {
  --primary: #0B7B74;
  --primary-light: #12A99F;
  --primary-pale: #E6F4F3;
  --primary-dark: #085E59;
  --gold: #C9963A;
  --gold-light: #F4E8CC;
  --white: #FFFFFF;
  --bg: #F7FAFA;
  --bg-alt: #EEF6F5;
  --text: #1A2332;
  --text-mid: #4A5568;
  --text-light: #718096;
  --border: #D9ECEB;
  --shadow-sm: 0 2px 8px rgba(11, 123, 116, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 123, 116, 0.12);
  --shadow-lg: 0 20px 60px rgba(11, 123, 116, 0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--white);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ── Typography ── */
h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }
p { color: var(--text-mid); }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-pale);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

/* ── Layout ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 48px);
}

section { padding: clamp(64px, 8vw, 120px) 0; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(11, 123, 116, 0.3);
}
.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11, 123, 116, 0.4);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-secondary:hover {
  background: var(--primary-pale);
  transform: translateY(-2px);
}

.btn-gold {
  background: var(--gold);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(201, 150, 58, 0.3);
}
.btn-gold:hover {
  background: #B8852F;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 150, 58, 0.4);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.7);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

/* ── Navigation ── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.site-nav.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 24px rgba(11, 123, 116, 0.1);
  padding: 10px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo-icon {
  width: 42px; height: 42px;
  background: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}
.nav-logo-icon:hover { transform: rotate(-5deg) scale(1.05); }
.nav-logo-icon svg { width: 24px; height: 24px; fill: none; stroke: white; stroke-width: 2; }

.nav-logo-text { display: flex; flex-direction: column; }
.nav-logo-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}
.nav-logo-sub {
  font-size: 0.7rem;
  color: var(--text-light);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-mid);
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 999px;
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); }

.nav-cta { padding: 10px 24px; font-size: 0.85rem; }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav-hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: white;
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 24px;
}
.nav-mobile.open { display: flex; }
.nav-mobile .nav-link { font-size: 1.4rem; }
.nav-mobile-close {
  position: absolute;
  top: 24px; right: 24px;
  font-size: 1.5rem;
  color: var(--text);
  background: none;
  border: none;
  cursor: pointer;
}

/* ── Hero Base ── */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='20'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1 { color: white; margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }
.page-hero .eyebrow { background: rgba(255,255,255,0.15); color: white; margin-bottom: 20px; }

/* ── Section Heading ── */
.section-heading {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}
.section-heading h2 { margin-bottom: 16px; color: var(--text); }
.section-heading p { font-size: 1.05rem; color: var(--text-mid); }

/* ── Cards ── */
.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* ── Grid ── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 32px;
}

/* ── Icon Box ── */
.icon-box {
  width: 60px; height: 60px;
  background: var(--primary-pale);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}
.icon-box svg { width: 28px; height: 28px; stroke: var(--primary); fill: none; stroke-width: 1.8; }
.card:hover .icon-box { background: var(--primary); }
.card:hover .icon-box svg { stroke: white; }

/* ── Stats ── */
.stats-section { background: var(--primary); color: white; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}
.stat-number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: white;
  line-height: 1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}
.stat-unit { font-size: 1.4rem; font-weight: 400; }
.stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.7); margin-top: 8px; letter-spacing: 0.05em; }

/* ── Testimonials ── */
.testimonial-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 16px; left: 24px;
  font-size: 5rem;
  line-height: 1;
  color: var(--primary-pale);
  font-family: Georgia, serif;
}
.testimonial-text { color: var(--text-mid); margin-bottom: 20px; font-style: italic; position: relative; z-index: 1; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--primary-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.testimonial-name { font-weight: 600; font-size: 0.9rem; }
.testimonial-meta { font-size: 0.8rem; color: var(--text-light); }
.stars { color: #F59E0B; font-size: 0.85rem; margin-bottom: 4px; }

/* ── CTA Banner ── */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: white;
  padding: 80px 0;
  text-align: center;
}
.cta-banner h2 { color: white; margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.8); margin-bottom: 32px; font-size: 1.05rem; }
.cta-banner-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ── */
footer {
  background: var(--text);
  color: rgba(255,255,255,0.7);
  padding: 60px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand h3 { color: white; margin-bottom: 12px; font-size: 1.1rem; }
.footer-brand p { font-size: 0.875rem; line-height: 1.8; margin-bottom: 20px; }
.footer-col h4 { color: white; font-size: 0.875rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.05em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 0.875rem; color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
}
.footer-bottom a { color: var(--primary-light); }
.footer-bottom a:hover { text-decoration: underline; }

/* ── Back to Top ── */
#back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 48px; height: 48px;
  background: var(--primary);
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(11, 123, 116, 0.4);
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  border: none;
  z-index: 900;
}
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
#back-to-top:hover {
  background: var(--primary-light);
  transform: translateY(-4px);
}
#back-to-top svg { width: 20px; height: 20px; stroke: white; fill: none; stroke-width: 2.5; }

/* ── Reveal Animation ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Form ── */
.form-group { margin-bottom: 24px; }
.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text);
  margin-bottom: 8px;
}
.form-label .req { color: #E53E3E; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: white;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(11, 123, 116, 0.1);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%234A5568' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 48px;
  cursor: pointer;
}
.form-checkbox-group { display: flex; flex-wrap: wrap; gap: 12px; }
.form-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-mid);
}
.form-checkbox-label input { accent-color: var(--primary); width: 16px; height: 16px; }

/* ── Doctor Card ── */
.doctor-card {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.doctor-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.doctor-photo {
  height: 220px;
  background: linear-gradient(135deg, var(--primary-pale), var(--bg-alt));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.doctor-photo svg { width: 80px; height: 80px; stroke: var(--primary); fill: none; stroke-width: 1.2; }
.doctor-info { padding: 28px; }
.doctor-name { font-size: 1.2rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.doctor-title { font-size: 0.85rem; color: var(--primary); font-weight: 600; margin-bottom: 16px; }
.doctor-bio { font-size: 0.9rem; color: var(--text-mid); line-height: 1.7; margin-bottom: 16px; }
.doctor-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.doctor-tag {
  font-size: 0.75rem;
  padding: 4px 12px;
  background: var(--primary-pale);
  color: var(--primary);
  border-radius: 999px;
  font-weight: 500;
}

/* ── Contact Info ── */
.contact-info-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 28px;
}
.contact-icon {
  width: 48px; height: 48px;
  background: var(--primary-pale);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 22px; height: 22px; stroke: var(--primary); fill: none; stroke-width: 2; }
.contact-info-label { font-size: 0.8rem; color: var(--text-light); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 4px; }
.contact-info-value { font-size: 0.95rem; color: var(--text); font-weight: 500; }

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: white; }
.breadcrumb-sep { opacity: 0.5; }

/* ── Appointment Steps ── */
.steps { display: flex; gap: 0; margin-bottom: 48px; }
.step {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 16px;
}
.step::after {
  content: '';
  position: absolute;
  top: 24px; right: 0;
  width: 50%; height: 2px;
  background: var(--border);
  transform: translateX(50%);
}
.step:last-child::after { display: none; }
.step-circle {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--primary-pale);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-weight: 700;
  color: var(--primary);
  position: relative;
  z-index: 1;
  font-size: 1.1rem;
}
.step.active .step-circle {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}
.step-label { font-size: 0.8rem; color: var(--text-mid); font-weight: 500; }

/* ── Service List ── */
.service-list-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  transition: var(--transition);
  background: white;
}
.service-list-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateX(8px);
}
.service-list-icon {
  width: 52px; height: 52px;
  background: var(--primary-pale);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.service-list-icon svg { width: 26px; height: 26px; stroke: var(--primary); fill: none; stroke-width: 1.8; }
.service-list-content h3 { font-size: 1rem; margin-bottom: 6px; }
.service-list-content p { font-size: 0.875rem; color: var(--text-mid); }

/* ── Floating Elements ── */
.float-card {
  position: absolute;
  background: white;
  border-radius: var(--radius);
  padding: 14px 18px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: floatY 3s ease-in-out infinite;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.float-card-icon { font-size: 1.5rem; }
.float-card-text { font-size: 0.8rem; font-weight: 600; color: var(--text); }
.float-card-sub { font-size: 0.7rem; color: var(--text-light); }
.float-card-2 { animation-delay: 1.5s; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }

  .steps { gap: 8px; }
  .step::after { display: none; }
  .step-label { display: none; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .btn { padding: 12px 24px; font-size: 0.875rem; }
  .cta-banner-buttons { flex-direction: column; align-items: center; }
}

/* ── Loading Animation ── */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.page-loader.hidden { opacity: 0; visibility: hidden; }
.loader-logo { font-size: 2rem; font-weight: 700; color: white; }
.loader-bar {
  width: 120px; height: 3px;
  background: rgba(255,255,255,0.3);
  border-radius: 999px;
  overflow: hidden;
}
.loader-bar-fill {
  height: 100%;
  background: white;
  border-radius: 999px;
  animation: loadBar 1s ease forwards;
}
@keyframes loadBar { from { width: 0; } to { width: 100%; } }

/* ── Map Placeholder ── */
.map-embed {
  width: 100%;
  height: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  color: var(--text-light);
  font-size: 0.9rem;
  border: 2px dashed var(--border);
}
.map-embed svg { width: 40px; height: 40px; stroke: var(--primary); fill: none; stroke-width: 1.5; }

/* ── Transparent Nav: white text for dark hero backgrounds ── */
.site-nav:not(.scrolled) .nav-logo-name { color: white; }
.site-nav:not(.scrolled) .nav-logo-sub { color: rgba(255,255,255,0.65); }
.site-nav:not(.scrolled) .nav-link { color: rgba(255,255,255,0.88); }
.site-nav:not(.scrolled) .nav-link:hover,
.site-nav:not(.scrolled) .nav-link.active { color: white; }
.site-nav:not(.scrolled) .nav-link::after { background: rgba(255,255,255,0.8); }
.site-nav:not(.scrolled) .nav-hamburger span { background: white; }
.site-nav:not(.scrolled) .nav-cta.btn-primary {
  background: rgba(255,255,255,0.18);
  color: white;
  border: 1.5px solid rgba(255,255,255,0.5);
  box-shadow: none;
}
.site-nav:not(.scrolled) .nav-cta.btn-primary:hover {
  background: rgba(255,255,255,0.28);
  transform: translateY(-1px);
}