/* ============================================================
   NHẬN DIỆN THƯƠNG HIỆU BÀI 3 - CHUYÊN GIA MAI THỊ DIỄM TRANG
   Tông màu: Deep Navy, Electric Cobalt, Radiant Gold, Pure White
   Tối ưu: Mobile-First, Chuẩn Responsive, Không giật lag
   ============================================================ */

:root {
  --primary: #3B2430;
  --primary-light: #5A3646;
  --secondary: #DB2777;
  --secondary-hover: #BE185D;
  --accent: #F59E0B;
  --accent-light: #FEF3C7;
  --accent-glow: rgba(245, 158, 11, 0.25);
  --success: #10B981;
  --danger: #EF4444;
  --bg: #FFF8F6;
  --surface: #FFFFFF;
  --surface-alt: #FDF0F3;
  --text-main: #3B2430;
  --text-muted: #7A6470;
  --text-inverse: #FFFFFF;
  --border: #F3DDE4;
  --border-focus: #EC4899;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 36px rgba(15, 23, 42, 0.1);
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
}

/* Container */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.logo-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--secondary) 0%, #BE185D 100%);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.5px;
  box-shadow: 0 4px 12px rgba(219, 39, 119, 0.3);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.3px;
  color: var(--primary);
}

.brand-tag {
  font-size: 0.75rem;
  color: var(--secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--secondary) 0%, #BE185D 100%);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px rgba(219, 39, 119, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(219, 39, 119, 0.45);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, #D97706 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-accent:hover {
  transform: translateY(-2px);
}

.btn-outline {
  background: var(--surface);
  color: var(--text-main);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--secondary);
  color: var(--secondary);
  background: rgba(219, 39, 119, 0.04);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-main);
}

/* Hero Section */
.hero {
  padding: 70px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 48px;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--accent-light);
  color: #B45309;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -1px;
  color: var(--primary);
  margin-bottom: 18px;
}

.hero-title span {
  color: var(--secondary);
  background: linear-gradient(135deg, var(--secondary) 0%, #EC4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.stat-item h4 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Hero Card Profile */
.profile-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  position: relative;
  text-align: center;
}

.profile-avatar-wrap {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 20px;
}

.profile-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--surface);
  box-shadow: 0 8px 24px rgba(219, 39, 119, 0.25);
  background: #E2E8F0;
}

.status-indicator {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 20px;
  height: 20px;
  background: var(--success);
  border-radius: 50%;
  border: 3px solid var(--surface);
}

.profile-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.profile-role {
  color: var(--secondary);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.profile-badges {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.badge-tag {
  background: var(--surface-alt);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.profile-cta {
  width: 100%;
}

/* Section Common */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

.section-subtitle {
  color: var(--secondary);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Skills / Strengths */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.skill-card {
  background: var(--surface);
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(219, 39, 119, 0.3);
}

.skill-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: rgba(219, 39, 119, 0.1);
  color: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 22px;
}

.skill-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}

.skill-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.project-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(219, 39, 119, 0.4);
}

.project-thumb {
  height: 180px;
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-inverse);
  padding: 20px;
}

.project-thumb-icon {
  font-size: 3rem;
  opacity: 0.9;
}

.project-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
}

.project-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex: 1;
}

.project-features {
  list-style: none;
  margin-bottom: 20px;
}

.project-features li {
  font-size: 0.85rem;
  color: var(--text-main);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-features li::before {
  content: "✔";
  color: var(--success);
  font-weight: 800;
  font-size: 0.8rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--secondary);
  text-decoration: none;
  transition: var(--transition);
}

.project-link:hover {
  gap: 10px;
  color: var(--secondary-hover);
}

/* Booking Section */
.booking-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.booking-info {
  background: linear-gradient(135deg, var(--primary) 0%, #1E293B 100%);
  color: var(--text-inverse);
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.booking-info h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.booking-info p {
  color: #94A3B8;
  font-size: 0.95rem;
  margin-bottom: 28px;
}

.booking-perks {
  list-style: none;
  margin-bottom: 36px;
}

.booking-perks li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.92rem;
}

.perk-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(219, 39, 119, 0.3);
  color: #F9A8D4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.price-box {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 20px;
}

.price-title {
  font-size: 0.85rem;
  color: #94A3B8;
  margin-bottom: 6px;
}

.price-value {
  font-size: 2rem;
  font-weight: 800;
  color: #FBBF24;
}

.price-note {
  font-size: 0.78rem;
  color: #CBD5E1;
  margin-top: 4px;
}

/* Booking Form */
.booking-form-box {
  padding: 44px;
}

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

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg);
}

.form-control:focus {
  outline: none;
  border-color: var(--secondary);
  background: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(219, 39, 119, 0.1);
}

.time-slots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.slot-btn {
  padding: 10px;
  border: 1.5px solid var(--border);
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.slot-btn:hover {
  border-color: var(--secondary);
}

.slot-btn.selected {
  background: var(--secondary);
  color: #FFFFFF;
  border-color: var(--secondary);
}

/* Price selection buttons */
.price-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.price-option-btn {
  padding: 12px;
  border: 1.5px solid var(--border);
  background: var(--bg);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.price-option-btn.selected {
  border-color: var(--accent);
  background: var(--accent-light);
}

.price-option-btn h5 {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--primary);
}

.price-option-btn p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Modal VietQR Payment */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(6px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--surface);
  width: 100%;
  max-width: 520px;
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  text-align: center;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
}

.qr-box {
  background: #FFFFFF;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 2px dashed var(--border);
  display: inline-block;
  margin: 16px 0;
  box-shadow: var(--shadow-sm);
}

.qr-img {
  width: 240px;
  height: 240px;
  object-fit: contain;
  display: block;
}

.timer-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #FEE2E2;
  color: #DC2626;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.bank-details {
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: left;
  margin-bottom: 20px;
}

.bank-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.bank-row:last-child {
  margin-bottom: 0;
}

.bank-row span:first-child {
  color: var(--text-muted);
}

.bank-row span:last-child {
  font-weight: 700;
  color: var(--primary);
}

/* Products Section (Affiliate Recommendations) */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(219, 39, 119, 0.35);
}

.product-img-wrap {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: #F1F5F9;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.product-clicks-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(4px);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 4px;
}

.product-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-cat {
  font-size: 0.75rem;
  color: var(--secondary);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.product-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.product-review {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex: 1;
  font-style: italic;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.product-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
}

/* Footer */
.footer {
  background: var(--primary);
  color: #94A3B8;
  padding: 60px 0 30px;
  border-top: 1px solid #1E293B;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand h4 {
  color: #FFFFFF;
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  max-width: 420px;
  line-height: 1.6;
}

.footer-col h5 {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* Toast */
.toast-msg {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--primary);
  color: #FFFFFF;
  padding: 14px 24px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  font-weight: 600;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
}

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

/* ============================================================
   RESPONSIVE DESIGN (TỐI ƯU TOÀN DIỆN CHO ĐIỆN THOẠI)
   ============================================================ */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-lead {
    margin: 0 auto 32px;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .skills-grid, .projects-grid, .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .booking-wrap {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.1rem;
  }
  .skills-grid, .projects-grid, .products-grid {
    grid-template-columns: 1fr;
  }
  .time-slots {
    grid-template-columns: repeat(2, 1fr);
  }
  .price-options {
    grid-template-columns: 1fr;
  }
  .booking-form-box, .booking-info {
    padding: 24px;
  }
  .modal-content {
    padding: 20px;
  }
  .qr-img {
    width: 200px;
    height: 200px;
  }
}

/* ===== Mẹ & bé: tông hồng ấm (2026-10-18) ===== */
.logo-badge { background: linear-gradient(135deg, #EC4899 0%, #DB2777 100%); }
.hero-title span { background: linear-gradient(135deg, #DB2777 0%, #F472B6 100%); -webkit-background-clip: text; background-clip: text; }
.project-thumb { background: linear-gradient(135deg, #FBCFE8 0%, #FDE68A 100%); color: var(--primary); }
.profile-avatar { box-shadow: 0 8px 24px rgba(219, 39, 119, 0.25); }
.avatar-initials {
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #FBCFE8 0%, #FDE68A 100%);
  color: #9D174D; font-size: 2.6rem; font-weight: 800;
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.product-icon-wrap {
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #FDF2F8 0%, #FEF9C3 100%);
  height: 150px;
}
.product-icon { font-size: 3.6rem; }
.btn-disabled { cursor: default; opacity: 0.7; pointer-events: none; }.project-tag { background: rgba(255, 255, 255, 0.85); color: #9D174D; }