/* ========================================
   MedTourNanshan - Global Stylesheet
   Shenzhen Nanshan District Tourism & Health
   ======================================== */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #1a6dff;
  --primary-dark: #0d4fcc;
  --primary-light: #e8f0ff;
  --accent: #00c9a7;
  --accent-dark: #00a88a;
  --text: #1e293b;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-light: #f8fafc;
  --bg-section: #f1f5f9;
  --border: #e2e8f0;
  --white: #ffffff;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

img {
  max-width: 100%;
  display: block;
}

ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 56px;
}

.section-title h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.section-title p {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
}

.nav-logo .logo-img {
  height: 40px;
  width: auto;
  border-radius: var(--radius-sm);
}

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

.nav-links a {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition);
}

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

.nav-cta {
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 10px 24px !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
}

/* Mobile Nav */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

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

/* ---------- Hero Section ---------- */
.hero {
  padding-top: 120px;
  padding-bottom: 80px;
  background: linear-gradient(135deg, #0d1b3e 0%, #1a3a6e 50%, #1a6dff 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-content h1 span {
  color: #60b4ff;
}

.hero-content p {
  font-size: 1.15rem;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,201,167,0.3);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
  border-color: white;
  background: rgba(255,255,255,0.1);
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}

/* ---------- Features / Highlights ---------- */
.features {
  background: var(--bg-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.8rem;
}

.feature-icon.blue { background: #e8f0ff; }
.feature-icon.green { background: #e6f9f3; }
.feature-icon.orange { background: #fff3e0; }
.feature-icon.purple { background: #f3e8ff; }
.feature-icon.teal { background: #e0f7f4; }
.feature-icon.red { background: #ffe8e8; }

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

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

/* ---------- Page Header (Sub Pages) ---------- */
.page-header {
  padding-top: 120px;
  padding-bottom: 60px;
  background: linear-gradient(135deg, #1a3a6e 0%, #1a6dff 100%);
  color: white;
  text-align: center;
}

.page-header h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Cards (General) ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
}

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

.card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: var(--bg-section);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 0.9rem;
}

.card-body {
  padding: 24px;
}

.card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card-body p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.tag {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}

.tag.green { background: #e6f9f3; color: #00a88a; }
.tag.orange { background: #fff3e0; color: #e65100; }

/* ---------- Package Cards (Health) ---------- */
.package-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 2px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.package-card.featured {
  border-color: var(--primary);
}

.package-card.featured::before {
  content: 'POPULAR';
  position: absolute;
  top: 16px;
  right: -32px;
  background: var(--primary);
  color: white;
  padding: 4px 40px;
  font-size: 0.75rem;
  font-weight: 700;
  transform: rotate(45deg);
}

.package-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.package-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.package-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.package-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.package-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-light);
}

.package-card ul {
  margin: 20px 0;
  padding-left: 0;
}

.package-card ul li {
  padding: 8px 0;
  padding-left: 28px;
  position: relative;
  color: var(--text-light);
  font-size: 0.95rem;
  list-style: none;
}

.package-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Contact Form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item .icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-item h4 {
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-item p {
  color: var(--text-light);
  font-size: 0.95rem;
}

.contact-form {
  background: var(--white);
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,109,255,0.1);
}

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

/* ---------- Footer ---------- */
.footer {
  background: #0d1b3e;
  color: rgba(255,255,255,0.8);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: white;
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
}

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

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary);
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding: 16px 0;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

.breadcrumb a {
  color: rgba(255,255,255,0.7);
}

.breadcrumb a:hover {
  color: white;
}

/* ---------- Stats ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-item p {
  color: var(--text-light);
  font-weight: 500;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content p { margin: 0 auto 32px; }
  .hero-buttons { justify-content: center; }
  .hero-image { display: none; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 16px;
    box-shadow: var(--shadow);
    border-radius: 0 0 var(--radius) var(--radius);
  }
  .hero-content h1 { font-size: 2.2rem; }
  .page-header h1 { font-size: 2rem; }
  .features-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  section { padding: 60px 0; }
}

/* ---------- About Page Specific ---------- */
.about-intro .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.about-text p {
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-image {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-section);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

@media (max-width: 1024px) {
  .about-intro .container {
    grid-template-columns: 1fr;
  }
}

/* ---------- Hospital Specific ---------- */
.hospital-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.hospital-map {
  background: var(--bg-section);
  border-radius: var(--radius);
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

@media (max-width: 768px) {
  .hospital-info {
    grid-template-columns: 1fr;
  }
}