/* Import Google Fonts - Optimized for Vietnamese */
@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,300;0,400;0,500;0,700;0,900;1,400;1,700&display=swap');

/* CSS Custom Variables - Design System */
:root {
  --font-primary: 'Roboto', sans-serif;
  --font-heading: 'Roboto', sans-serif;

  /* Color Palette */
  --color-primary: #1e5c45;      /* Deep Forest Green */
  --color-primary-light: #f1f7f4;
  --color-primary-hover: #154231;
  --color-secondary: #0a8491;    /* Medical Deep Teal/Blue */
  --color-secondary-light: #e6f6f7;
  --color-accent: #d99b26;       /* Warm Gold */
  --color-accent-light: #fdf8eb;
  --color-accent-hover: #bf851a;
  --color-text-dark: #2d3748;    /* Dark Charcoal for high legibility */
  --color-text-muted: #718096;
  --color-bg-light: #fafbfc;
  --color-bg-white: #ffffff;
  --color-bg-warm: #fcf9f2;      /* Warm family tone */
  --color-border: #e2e8f0;
  --color-danger: #e53e3e;
  --color-success: #38a169;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-primary: 0 8px 30px rgba(30, 92, 69, 0.15);
  
  /* Borders and Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Layout */
  --container-width: 1200px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
}

p {
  color: var(--color-text-muted);
}

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

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

/* Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
}

.text-center { text-align: center; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.mt-40 { margin-top: 40px; }

/* Buttons & CTA */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-slow);
  border: none;
  outline: none;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(217, 155, 38, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 155, 38, 0.4);
}

.btn-secondary {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(30, 92, 69, 0.2);
}

.btn-secondary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 92, 69, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary-light);
  transform: translateY(-2px);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: var(--transition-normal);
}

header.scrolled {
  box-shadow: var(--shadow-md);
  padding: 5px 0;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-primary);
}

.logo svg {
  width: 40px;
  height: 40px;
}

.logo img,
.footer-logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-dark);
  position: relative;
  padding: 8px 0;
}

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

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, #ffffff 100%);
  padding: 160px 0 100px 0;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  bottom: -50px;
  right: -50px;
  width: 300px;
  height: 300px;
  background-color: var(--color-accent-light);
  border-radius: var(--radius-full);
  filter: blur(80px);
  z-index: 0;
  opacity: 0.6;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 8px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid rgba(30, 92, 69, 0.15);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero-title {
  font-size: 3.25rem;
  line-height: 1.15;
  font-weight: 800;
}

.hero-title span {
  color: var(--color-accent);
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 10px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
  border-top: 1px solid var(--color-border);
  padding-top: 30px;
}

.stat-item h4 {
  font-size: 1.75rem;
  color: var(--color-primary);
  font-weight: 800;
  margin-bottom: 4px;
}

.stat-item p {
  font-size: 0.85rem;
  font-weight: 500;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.hero-image-wrapper img {
  width: 100%;
  height: 520px;
  object-fit: cover;
  transition: var(--transition-slow);
}

.hero-image-wrapper:hover img {
  transform: scale(1.03);
}

.hero-badge-floating {
  position: absolute;
  bottom: 30px;
  left: 30px;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2;
  border-left: 4px solid var(--color-primary);
}

.floating-icon {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-info h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
}

.floating-info p {
  font-size: 0.8rem;
  margin: 0;
}

@media (max-width: 992px) {
  .hero {
    padding: 120px 0 80px 0;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .hero-image-wrapper img {
    height: 400px;
  }
}

/* Empathy Section (Thấu hiểu & Đồng cảm) */
.empathy {
  background-color: var(--color-bg-warm);
}

.section-header {
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-header h2 {
  font-size: 2.25rem;
  margin-top: 12px;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
}

.empathy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.empathy-card {
  background-color: var(--color-bg-white);
  padding: 40px 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  border-top: 4px solid transparent;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.empathy-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-top: 4px solid var(--color-accent);
}

.empathy-card-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empathy-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

.empathy-card p {
  font-size: 0.95rem;
}

@media (max-width: 992px) {
  .empathy-grid {
    grid-template-columns: 1fr;
  }
}

/* Solutions Section (Giải pháp & Giá trị độc bản) */
.solutions {
  background-color: var(--color-bg-white);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.solution-card {
  background-color: var(--color-bg-light);
  padding: 40px 30px;
  border-radius: var(--radius-md);
  transition: var(--transition-normal);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.solution-card:hover {
  background-color: var(--color-bg-white);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  transform: translateY(-5px);
}

.solution-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: var(--transition-normal);
}

.solution-card:hover .solution-icon {
  background-color: var(--color-primary);
  color: #fff;
}

.solution-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

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

.solution-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.solution-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-dark);
}

.solution-list li svg {
  color: var(--color-success);
}

@media (max-width: 992px) {
  .solutions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
}

/* Feature highlight callout (Dual column, image & copy) */
.highlight-section {
  background-color: var(--color-primary-light);
  padding: 100px 0;
}

.highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.highlight-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.highlight-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.highlight-content h2 {
  font-size: 2.25rem;
}

.highlight-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 10px;
}

.point-item {
  display: flex;
  gap: 16px;
}

.point-icon {
  background-color: var(--color-primary);
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.point-info h4 {
  font-size: 1.05rem;
  color: var(--color-text-dark);
  font-weight: 700;
  margin-bottom: 4px;
}

.point-info p {
  font-size: 0.9rem;
}

@media (max-width: 992px) {
  .highlight-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .highlight-image img {
    height: 350px;
  }
}

/* Service Packages & Process */
.packages {
  background-color: var(--color-bg-light);
}

.packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.package-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.package-card.featured {
  border-color: var(--color-accent);
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.package-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #fff;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.package-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.package-desc {
  font-size: 0.9rem;
  margin-bottom: 24px;
  min-height: 48px;
}

.package-price {
  font-family: var(--font-heading);
  margin-bottom: 24px;
}

.package-price .price {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-primary);
}

.package-price .period {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.package-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.package-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text-dark);
}

.package-features li svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.package-card .btn {
  width: 100%;
}

@media (max-width: 992px) {
  .packages-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }
  .package-card.featured {
    transform: none;
  }
}

/* Process section (Vertical Timeline) */
.process {
  background-color: var(--color-bg-white);
}

.process-timeline {
  position: relative;
  max-width: 800px;
  margin: 50px auto 0 auto;
  padding: 20px 0;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background-color: var(--color-border);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  width: 50%;
  padding: 0 40px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

.timeline-badge {
  position: absolute;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  z-index: 2;
  box-shadow: 0 0 0 6px var(--color-bg-white);
}

.timeline-item:nth-child(odd) .timeline-badge {
  right: -20px;
}

.timeline-item:nth-child(even) .timeline-badge {
  left: -20px;
}

.timeline-panel {
  background-color: var(--color-bg-light);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  border: 1px solid var(--color-border);
}

.timeline-panel:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.timeline-panel h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.timeline-panel p {
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .process-timeline::before {
    left: 20px;
  }
  .timeline-item {
    width: 100%;
    padding-left: 50px;
    padding-right: 0;
    text-align: left !important;
  }
  .timeline-item:nth-child(even) {
    left: 0;
  }
  .timeline-item:nth-child(odd) .timeline-badge,
  .timeline-item:nth-child(even) .timeline-badge {
    left: 0px;
  }
}

/* Social Proof & Testimonials (Chứng thực & Lòng tin) */
.social-proof {
  background-color: var(--color-bg-warm);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.testimonial-card {
  background-color: var(--color-bg-white);
  padding: 30px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.stars {
  display: flex;
  gap: 4px;
  color: var(--color-accent);
}

.testimonial-text {
  font-size: 0.95rem;
  font-style: italic;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
}

.author-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 700;
  font-family: var(--font-heading);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-primary);
}

.author-info h4 {
  font-size: 0.95rem;
  color: var(--color-text-dark);
}

.author-info p {
  font-size: 0.8rem;
}

/* Team Showcase */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 60px;
}

.team-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  text-align: center;
  transition: var(--transition-normal);
}

.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.team-avatar {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.team-info {
  padding: 20px;
}

.team-info h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.team-info p {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-secondary);
}

@media (max-width: 992px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .team-grid {
    grid-template-columns: 1fr;
  }
}

/* Trust trust indicators */
.trust-indicators {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 50px;
  margin-top: 50px;
  opacity: 0.8;
}

.trust-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text-muted);
}

.trust-logo svg {
  width: 24px;
  height: 24px;
}

/* FAQ Section (Câu hỏi thường gặp) */
.faq {
  background-color: var(--color-bg-white);
}

.faq-container {
  max-width: 800px;
  margin: 50px auto 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-normal);
  background-color: var(--color-bg-light);
}

.faq-item:hover {
  border-color: rgba(30, 92, 69, 0.3);
}

.faq-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  gap: 20px;
}

.faq-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-dark);
  margin: 0;
}

.faq-icon {
  transition: var(--transition-normal);
  color: var(--color-primary);
  flex-shrink: 0;
}

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

.faq-content {
  padding: 0 24px 20px 24px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.faq-item.active {
  background-color: var(--color-bg-white);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.faq-item.active .faq-header h3 {
  color: var(--color-primary);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Registration Form & Contact (Footer-Form) */
.contact-section {
  background-color: var(--color-primary-light);
  padding: 100px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: start;
}

.contact-info-block {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.contact-info-block h2 {
  font-size: 2.25rem;
}

.contact-info-block > p {
  font-size: 1.05rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-detail-item {
  display: flex;
  gap: 16px;
}

.contact-detail-icon {
  background-color: var(--color-primary);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-info h4 {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

.contact-detail-info p {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

/* Map Card Placeholders */
.map-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  height: 250px;
  position: relative;
}

.map-card iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Form Styling */
.form-card {
  background-color: var(--color-bg-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
}

.form-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.form-card p {
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  color: var(--color-text-dark);
  transition: var(--transition-normal);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 92, 69, 0.1);
}

.form-card .btn {
  width: 100%;
  margin-top: 10px;
}

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* Footer Section */
footer {
  background-color: #111a16;
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 30px 0;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
  gap: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 60px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 16px;
}

.footer-logo svg {
  width: 40px;
  height: 40px;
}

.footer-col h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: var(--color-accent);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-socials {
  display: flex;
  gap: 16px;
  margin-top: 20px;
}

.social-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.05);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.social-icon:hover {
  background-color: var(--color-accent);
  transform: translateY(-3px);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-nav {
  display: flex;
  gap: 24px;
  list-style: none;
}

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

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .footer-nav {
    justify-content: center;
  }
}

/* Floating Hotline Sticky Bar */
.floating-hotline {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hotline-btn {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  position: relative;
  transition: var(--transition-slow);
}

.hotline-phone {
  background-color: var(--color-success);
}

.hotline-phone::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-success);
  animation: pulse-ring 1.5s infinite;
  z-index: -1;
}

.hotline-zalo {
  background-color: var(--color-secondary);
}

.hotline-btn:hover {
  transform: scale(1.1) rotate(5deg);
}

.hotline-tooltip {
  position: absolute;
  right: 75px;
  background-color: var(--color-text-dark);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.hotline-btn:hover .hotline-tooltip {
  opacity: 1;
}

/* Form success message popup style */
.toast {
  position: fixed;
  top: 30px;
  right: 30px;
  background-color: var(--color-success);
  color: #fff;
  padding: 16px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 1001;
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translateY(-100px);
  opacity: 0;
  transition: var(--transition-slow);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Animations */
@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    opacity: 0.4;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile responsive navigation drawer */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--color-bg-white);
    flex-direction: column;
    padding: 40px 24px;
    gap: 24px;
    transition: var(--transition-slow);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    left: 0;
  }

  .menu-toggle {
    display: block;
  }

  .nav-cta {
    display: none; /* In mobile, CTA is inside menu or float */
  }
}

/* --- Styling for Large screens (1400px+) --- */
@media (min-width: 1400px) {
  :root {
    --container-width: 1400px;
  }
  .hero-image-wrapper img {
    height: 580px;
  }
}

/* --- Styling for Ultra Wide screens (1920px+) --- */
@media (min-width: 1920px) {
  :root {
    --container-width: 1600px;
  }
  html {
    font-size: 18px; /* Globally scales up elements using rem */
  }
  .hero {
    min-height: 80vh; /* Reduces vertical stretching relative to viewport height */
    padding: 200px 0 140px 0;
  }
  .hero-image-wrapper img {
    height: 680px;
  }
  .section-padding {
    padding: 120px 0;
  }
}

/* --- Seeding Toast Notification --- */
.seeding-toast {
  position: fixed;
  bottom: 30px;
  left: 30px;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-left: 5px solid var(--color-accent);
  padding: 18px 24px;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px -10px rgba(10, 132, 145, 0.15), var(--shadow-xl);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transform: translateX(-450px) scale(0.9);
  opacity: 0;
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.6s ease;
  max-width: 400px;
}

.seeding-toast.show {
  transform: translateX(0) scale(1);
  opacity: 1;
}

.seeding-toast-icon {
  background-color: var(--color-accent);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(217, 155, 38, 0.3);
  position: relative;
}

/* Pulsing Online Dot */
.seeding-toast-icon::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background-color: var(--color-success);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-white);
  animation: pulse-ring-green 1.5s infinite;
}

@keyframes pulse-ring-green {
  0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(56, 161, 105, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(56, 161, 105, 0); }
  100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(56, 161, 105, 0); }
}

.seeding-toast-info h5 {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 4px;
  line-height: 1.4;
}

.seeding-toast-info p {
  font-size: 0.8rem;
  margin: 0;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.seeding-toast-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  margin-left: 10px;
  align-self: flex-start;
  transition: var(--transition-fast);
  opacity: 0.7;
}

.seeding-toast-close:hover {
  color: var(--color-danger);
  opacity: 1;
}

/* --- Spin Loader Animation --- */
.spin {
  animation: spin-kf 1.5s linear infinite;
}
@keyframes spin-kf {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* --- Rooms Section & Gallery CSS --- */
.rooms {
  background-color: var(--color-bg-light);
}

.rooms-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 48px;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-normal);
  outline: none;
}

.filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.filter-btn.active {
  background-color: var(--color-primary);
  color: var(--color-bg-white);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.rooms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.room-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: scale(1);
}

.room-card.hide {
  display: none;
}

.room-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(30, 92, 69, 0.15);
}

.room-img-wrapper {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.room-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.room-card:hover .room-img-wrapper img {
  transform: scale(1.08);
}

.room-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(30, 92, 69, 0.8) 0%, rgba(30, 92, 69, 0.2) 100%);
  opacity: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  transition: opacity var(--transition-normal);
  z-index: 2;
}

.room-card:hover .room-overlay {
  opacity: 1;
}

.room-tag {
  align-self: flex-start;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-sm);
}

.zoom-btn {
  align-self: flex-end;
  background-color: var(--color-bg-white);
  color: var(--color-primary);
  border: none;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.zoom-btn:hover {
  background-color: var(--color-accent);
  color: #fff;
  transform: scale(1.1);
}

.room-info {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex-grow: 1;
}

.room-info h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
  font-weight: 700;
  margin: 0;
}

.room-info p {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  margin: 0;
}

@media (max-width: 992px) {
  .rooms-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .room-img-wrapper {
    height: 220px;
  }
}

@media (max-width: 576px) {
  .rooms-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .rooms-filter {
    margin-bottom: 30px;
  }
  .filter-btn {
    padding: 8px 18px;
    font-size: 0.85rem;
  }
  .room-img-wrapper {
    height: 200px;
  }
}

/* --- Lightbox Modal Styles --- */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.lightbox.show {
  display: flex;
  opacity: 1;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 2100;
}

.lightbox-close:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
  transform: scale(1.1);
}

.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 2100;
  outline: none;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: 32px;
}

.lightbox-next {
  right: 32px;
}

.lightbox-content {
  position: relative;
  max-width: 85%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  animation: lightboxZoom 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes lightboxZoom {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.lightbox-content img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border: 3px solid rgba(255, 255, 255, 0.1);
}

.lightbox-caption {
  color: #f1f7f4;
  font-family: var(--font-primary);
  font-size: 1.15rem;
  font-weight: 600;
  text-align: center;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  max-width: 600px;
}

@media (max-width: 768px) {
  .lightbox-prev,
  .lightbox-next {
    width: 44px;
    height: 44px;
  }
  .lightbox-prev {
    left: 12px;
  }
  .lightbox-next {
    right: 12px;
  }
  .lightbox-content {
    max-width: 90%;
  }
  .lightbox-caption {
    font-size: 1rem;
  }
}