/* ============================================= */
/* MODERN THEME - XE DU LỊCH HÀ NỘI            */
/* Color Theme: Black + Yellow + Light Gray     */
/* ============================================= */

/* ===== CSS Custom Properties ===== */
:root {
  /* Colors */
  --color-primary: #000000;
  --color-accent: #ff9000;
  --color-accent-hover: #e5b300;
  --color-neutral: #f3f4f6;
  --color-neutral-dark: #e5e7eb;
  --color-white: #ffffff;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-text-muted: #9ca3af;

  /* Typography */
  --font-primary: "Inter", "Roboto", -apple-system, BlinkMacSystemFont,
    sans-serif;
  --font-size-xs: 0.75rem; /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-base: 1rem; /* 16px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem; /* 20px */
  --font-size-2xl: 1.5rem; /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem; /* 36px */
  --font-size-5xl: 3rem; /* 48px */

  /* Spacing (8px base unit) */
  --space-1: 0.25rem; /* 4px */
  --space-2: 0.5rem; /* 8px */
  --space-3: 0.75rem; /* 12px */
  --space-4: 1rem; /* 16px */
  --space-5: 1.25rem; /* 20px */
  --space-6: 1.5rem; /* 24px */
  --space-8: 2rem; /* 32px */
  --space-10: 2.5rem; /* 40px */
  --space-12: 3rem; /* 48px */
  --space-16: 4rem; /* 64px */
  --space-20: 5rem; /* 80px */

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Container */
  --container-max: 1200px;
  --container-padding: 1rem;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* ===== Typography ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--font-size-5xl);
}
h2 {
  font-size: var(--font-size-4xl);
}
h3 {
  font-size: var(--font-size-2xl);
}
h4 {
  font-size: var(--font-size-xl);
}
h5 {
  font-size: var(--font-size-lg);
}
h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-light);
}

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

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

/* ===== HEADER SECTION ===== */
.site-header {
  background: linear-gradient(#0e70bb, #104282);
  padding: var(--space-2) 0; /* Reduced padding for compact header */
  position: sticky; /* Keep sticky for navigation access */
  top: 0;
  z-index: 9999; /* Ensure it stays on top */
  color: var(--color-white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  .logo-section {
    align-items: center;
  }

  .hotline-btn {
    width: 100%;
    min-width: auto;
  }
}

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

.brand-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
  margin: 0;
  letter-spacing: -0.02em;
}

.brand-name span {
  color: var(--color-accent);
}

.brand-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.hotline-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  background: #ff9000; /* Updated to "màu trên" (orange) */
  color: #000; /* Ensure text is dark on orange */
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-weight: 600;
  transition: all var(--transition-base);
  min-width: 200px; /* Ensure button has some width */
}

/* ... skip hover ... */

.hotline-info {
  display: flex;
  flex-direction: column;
  text-align: center;
  align-items: center;
}

.hotline-number {
  font-size: var(--font-size-lg);
  font-weight: 700;
  line-height: 1.2;
}

.hotline-label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  opacity: 0.8;
}

/* ===== HERO SECTION ===== */
.hero-section {
  position: relative;
  background-color: var(--color-neutral);
  overflow: hidden;
}

/* Hero Carousel Fixed Height & Reset */
/* Hero Carousel Responsive Height */
.hero-carousel,
.hero-carousel .owl-wrapper-outer,
.hero-carousel .owl-item,
.hero-carousel .owl-item .item,
.hero-carousel .kc-carousel-images {
  height: 92vh !important; /* User requested full height */
  min-height: 500px !important;
  border-radius: 0 !important;
  overflow: hidden;
  margin: 0 !important;
  padding: 0 !important;
}

.hero-carousel img {
  width: 100% !important;
  height: 100% !important; /* Fill the 90vh container */
  object-fit: cover !important; /* Cover the area, center focused */
  object-position: center center !important;
  border-radius: 0 !important;
  display: block;
}

/* Tablet Responsive Adjustments */
@media (max-width: 1024px) {
  .hero-section,
  .hero-carousel,
  .hero-carousel .owl-carousel,
  .hero-carousel .owl-wrapper,
  .hero-carousel .owl-wrapper-outer,
  .hero-carousel .owl-item,
  .hero-carousel .owl-item .item,
  .hero-carousel .kc-carousel-images {
    height: auto !important; /* Allow natural height on tablet */
    min-height: auto !important;
    max-height: none !important;
    aspect-ratio: auto !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .hero-carousel img {
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    object-fit: contain !important; /* Show full image without cropping */
  }

  .site-header {
    position: sticky;
  }
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
  .hero-section,
  .hero-carousel,
  .hero-carousel .owl-carousel,
  .hero-carousel .owl-wrapper,
  .hero-carousel .owl-wrapper-outer,
  .hero-carousel .owl-item,
  .hero-carousel .owl-item .item,
  .hero-carousel .kc-carousel-images {
    height: auto !important;
    min-height: auto !important;
    max-height: none !important;
    overflow: visible !important;
  }

  .hero-carousel img {
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    object-fit: contain !important;
    display: block !important;
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.6) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-8);
}

.hero-title {
  font-size: var(--font-size-4xl);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-white);
  opacity: 0.9;
  max-width: 600px;
}

/* ===== BOOKING FORM SECTION ===== */
.booking-section {
  background-color: var(--color-neutral);
  padding: var(--space-8) 0 var(--space-16);
  margin-top: -60px;
  position: relative;
  z-index: 10;
  overflow: hidden; /* Ẩn các phần vượt ra ngoài */
}

/* Overlay chỉ 2 góc bán nguyệt ở dưới */
.booking-section .booking-wrapper::before,
.booking-section .booking-wrapper::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background-color: #ffffff; /* Body background color */
  z-index: 1;
}

/* Góc dưới bên trái - hình bán nguyệt hướng vào trong */
.booking-section .booking-wrapper::before {
  bottom: -150px;
  left: -40px; /* Đổi thành -40px */
  border-radius: 0 100% 0 0;
}

/* Góc dưới bên phải - hình bán nguyệt hướng vào trong */
.booking-section .booking-wrapper::after {
  bottom: -150px;
  right: -40px; /* Đổi thành -40px */
  border-radius: 100% 0 0 0;
}

/* Wrapper cho overlay 4 góc */
.booking-section .booking-wrapper {
  position: relative;
  z-index: 3;
}

/* Đảm bảo booking form nằm trên overlay */
.booking-section .container {
  position: relative;
  z-index: 4;
}

.booking-form-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 24px; /* Reduced from space-8 */
  max-width: 900px;
  margin: 0 auto;
  border-top: 6px solid #0e70bb; /* Accent border matching header */
  position: relative;
  overflow: hidden;
}

.booking-form {
  padding-bottom: 20px; /* Internal spacing */
}

/* Mobile specific fixes */
@media (max-width: 600px) {
  .booking-form-card {
    padding: 15px;
    margin-bottom: 50px; /* Add space at bottom so fixed buttons don't block content */
  }

  .form-submit-wrapper {
    margin-top: 10px;
    padding-bottom: 10px;
  }

  .btn-lg {
    width: 100%; /* Full width button on mobile */
  }
}

.booking-form-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(
    to right,
    #0e70bb,
    #104282
  ); /* Gradient matching header footer */
}

.booking-form-title {
  font-size: 24px; /* Reduced size */
  text-align: center;
  margin-bottom: 20px; /* Reduced margin */
  color: #0e70bb; /* Blue brand color */
  font-weight: 800;
  text-transform: uppercase;
}

.booking-form-title span {
  color: #104282; /* Darker blue accent */
}

.booking-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 600px) {
  .booking-form {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .booking-form {
    grid-template-columns: 1fr 1fr 1fr; /* 3 Columns for Desktop */
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  display: block;
  font-size: 16px; /* Increased size */
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
  border-left: 4px solid #ff9000; /* Orange accent border */
  padding-left: 10px; /* Spacing for text */
}

.form-input,
.form-select {
  width: 100%;
  padding: 10px 14px; /* Balanced padding */
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 15px; /* Restored size */
  transition: all var(--transition-base);
  background-color: #f9fafb;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: #0e70bb; /* Blue focus border */
  box-shadow: 0 0 0 4px rgba(14, 112, 187, 0.15); /* Blue subtle glow */
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 20px;
  padding-right: 48px;
}

.form-checkbox-group {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 20px; /* Increased gap clearly separates items */
  grid-column: span 1;
  border-bottom: none;
  margin: 0;
  height: 100%;
  padding-top: 28px;
  flex-wrap: wrap; /* Allow wrapping but prefer horizontal */
}

@media (max-width: 899px) {
  .form-checkbox-group {
    grid-column: 1 / -1;
    margin: 5px 0 15px 0; /* Adjusted margin */
    padding-top: 0;
    width: 100%;
    justify-content: space-between; /* Spread out on small screens or flex-start */
  }
}

.form-checkbox {
  display: inline-flex; /* Ensure inline behavior */
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  margin-right: 15px; /* Safety margin */
}

.form-checkbox input[type="checkbox"] {
  appearance: none;
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-neutral-dark);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
}

.form-checkbox input[type="checkbox"]:checked {
  background-color: #0e70bb; /* Blue checkbox */
  border-color: #0e70bb;
}

.form-checkbox input[type="checkbox"]:checked::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 14px;
}

.form-checkbox-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
}

/* Carousel Navigation & Pagination Fixes */
.hero-carousel .owl-controls .owl-buttons {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  width: 100%;
  pointer-events: none; /* Let clicks pass through container */
  z-index: 20;
}

.hero-carousel .owl-controls .owl-buttons div {
  position: absolute;
  pointer-events: auto; /* Re-enable clicks on buttons */
  background: rgba(0, 0, 0, 0.5) !important;
  color: #fff !important;
  font-size: 18px !important;
  padding: 10px 15px !important;
  border-radius: 4px !important;
  opacity: 0.8;
  transition: all 0.3s;
}

.hero-carousel .owl-controls .owl-buttons div:hover {
  background: #ff9000 !important; /* Orange hover */
  opacity: 1;
}

.hero-carousel .owl-prev {
  left: 20px;
}

.hero-carousel .owl-next {
  right: 20px;
}

.hero-carousel .owl-controls .owl-pagination {
  position: absolute;
  bottom: 20px;
  left: 0;
  right: 0;
  text-align: center;
  z-index: 20;
  width: 100%;
}

.hero-carousel .owl-controls .owl-page span {
  width: 12px;
  height: 12px;
  margin: 5px 7px;
  background: rgba(255, 255, 255, 0.5) !important;
  display: block;
  border-radius: 50%;
  transition: all 0.3s;
}

.hero-carousel .owl-controls .owl-page.active span {
  background: #ff9000 !important; /* Active dot orange */
  transform: scale(1.2);
}

.form-submit-wrapper {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  margin-top: var(--space-4);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--font-size-base);
  line-height: 1;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-lg {
  height: 56px;
  padding: 0 var(--space-10);
  font-size: var(--font-size-lg);
}

.btn-primary {
  background: #ff9000; /* Yellow/Orange Accent */
  background: linear-gradient(
    to bottom,
    #ff9000,
    #e58100
  ); /* Slight gradient for depth */
  color: #000000; /* Black text for contrast */
  border: none;
  box-shadow: 0 4px 15px rgba(255, 144, 0, 0.3);
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 700; /* Bold text */
  margin-top: 10px;
  text-transform: uppercase;
}

.btn-primary:hover {
  background: linear-gradient(to bottom, #e58100, #ff9000);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 144, 0, 0.4);
  color: #000;
}

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

.btn-secondary:hover {
  background-color: #1a1a1a;
}

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

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

/* ===== SECTION STYLES ===== */
.section {
  padding: var(--space-16) 0;
}

.section-alt {
  background-color: var(--color-neutral);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-12);
}

.section-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-4);
}

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

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
}

/* ===== PRICING CARDS ===== */
.pricing-section {
  padding: var(--space-16) 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.pricing-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

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

.pricing-card-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pricing-card-icon img {
  max-width: 100%;
  max-height: 100%;
}

.pricing-card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.pricing-card-divider {
  height: 1px;
  background-color: var(--color-neutral-dark);
  margin: var(--space-4) 0;
}

.pricing-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
}

.pricing-route {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.pricing-value {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-accent);
}

.pricing-note {
  text-align: center;
  margin-top: var(--space-8);
  padding: var(--space-4);
  background-color: rgba(255, 199, 0, 0.1);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-accent);
}

.pricing-note p {
  margin: 0;
  color: var(--color-text);
}

.pricing-note strong {
  color: var(--color-accent);
}

/* ===== FEATURES SECTION ===== */
.features-section {
  background-color: var(--color-neutral);
  padding: var(--space-16) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.feature-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--transition-base);
}

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

.feature-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-6);
  background-color: var(--color-accent);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-3xl);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.feature-description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: 1.6;
  margin: 0;
}

/* ===== PAYMENT SECTION ===== */
.payment-section {
  padding: var(--space-16) 0;
  background-color: var(--color-white);
}

.payment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.payment-card {
  background-color: var(--color-neutral);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.payment-card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.payment-card-title span {
  font-size: var(--font-size-2xl);
}

.payment-card p {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  margin: 0;
}

.payment-info {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-top: var(--space-4);
}

.payment-info-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--color-neutral-dark);
}

.payment-info-row:last-child {
  border-bottom: none;
}

.payment-info-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.payment-info-value {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent);
}

/* ===== FOOTER ===== */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.footer-column {
  display: flex;
  flex-direction: column;
}

.footer-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer-brand span {
  color: var(--color-accent);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-6);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-base);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-contact-icon {
  font-size: var(--font-size-lg);
  color: var(--color-accent);
}

.footer-contact-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer-contact-text a {
  color: var(--color-accent);
}

.footer-bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin: 0;
}

/* ===== FLOATING BUTTONS ===== */
.floating-buttons {
  position: fixed;
  bottom: var(--space-6);
  left: var(--space-6);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.floating-btn {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.floating-btn:hover {
  transform: scale(1.1);
}

.floating-btn-phone {
  background-color: #25d366;
}

.floating-btn-zalo {
  background-color: #0068ff;
}

.floating-btn img {
  width: 32px;
  height: 32px;
}

.floating-phone-wrapper {
  position: relative;
}

.floating-phone-number {
  position: absolute;
  left: calc(100% + var(--space-3));
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--color-accent);
  color: var(--color-primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--font-size-sm);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}

/* ===== MODAL STYLES ===== */
.modal-modern .modal-content {
  border: none;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.modal-modern .modal-header {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-6);
  border: none;
}

.modal-modern .modal-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.modal-modern .modal-body {
  padding: var(--space-8);
  text-align: center;
}

.modal-modern .modal-footer {
  border: none;
  padding: var(--space-6);
  justify-content: center;
}

.modal-modern .btn-success {
  background-color: var(--color-accent);
  color: var(--color-primary);
  border: none;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-lg);
  font-weight: 600;
}

/* ===== CUSTOMER ACTIVITY ===== */
.customer-activity {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-top: var(--space-4);
  max-height: 200px;
  overflow: hidden;
}

.customer-activity-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-neutral);
}

.customer-activity-item:last-child {
  border-bottom: none;
}

.customer-name {
  font-weight: 600;
  color: var(--color-accent);
}

.customer-destination {
  color: var(--color-text);
}

.customer-phone {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
  }

  .hero-carousel {
    height: 350px;
  }

  /* Responsive cho overlay - Desktop nhỏ */
  .booking-section .booking-wrapper::before,
  .booking-section .booking-wrapper::after {
    width: 200px;
    height: 200px;
  }

  .booking-section .booking-wrapper::before {
    bottom: -100px;
    left: -70px; /* Tỷ lệ với yêu cầu */
  }

  .booking-section .booking-wrapper::after {
    bottom: -100px;
    right: -70px; /* Tỷ lệ với yêu cầu */
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
  }

  .header-container {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .logo-section {
    align-items: center;
  }

  .hotline-btn {
    width: 100%;
    justify-content: center;
  }

  .hero-carousel {
    height: 280px;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .booking-form-card {
    padding: var(--space-6);
    margin: var(--space-4);
    border-radius: var(--radius-lg);
  }

  .booking-form {
    grid-template-columns: 1fr;
  }

  .form-checkbox-group {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .pricing-grid,
  .features-grid,
  .payment-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-column {
    align-items: center;
  }

  .footer-contact-item {
    justify-content: center;
  }

  .floating-phone-number {
    display: none;
  }

  .section {
    padding: var(--space-12) 0;
  }

  /* Responsive cho overlay - Tablet */
  .booking-section .booking-wrapper::before,
  .booking-section .booking-wrapper::after {
    width: 150px;
    height: 150px;
  }

  .booking-section .booking-wrapper::before {
    bottom: -75px;
    left: -50px; /* Tỷ lệ với yêu cầu */
  }

  .booking-section .booking-wrapper::after {
    bottom: -75px;
    right: -50px; /* Tỷ lệ với yêu cầu */
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 0.75rem;
  }

  .btn-lg {
    width: 100%;
    height: 52px;
    font-size: var(--font-size-base);
  }

  .pricing-card {
    padding: var(--space-4);
  }

  .feature-card {
    padding: var(--space-6);
  }

  .floating-buttons {
    left: var(--space-4);
    bottom: var(--space-4);
  }

  .floating-btn {
    width: 48px;
    height: 48px;
  }

  /* Responsive cho overlay - Mobile
  .booking-section .booking-wrapper::before,
  .booking-section .booking-wrapper::after {
    width: 80px;
    height: 80px;
  } */

  .booking-section .booking-wrapper::before {
    bottom: -80px;
    left: -20px; /* Tỷ lệ với yêu cầu */
  }

  .booking-section .booking-wrapper::after {
    bottom: -80px;
    right: -20px; /* Tỷ lệ với yêu cầu */
  }
}

/* ===== UTILITIES ===== */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}
.text-accent {
  color: var(--color-accent);
}
.text-muted {
  color: var(--color-text-muted);
}
.font-bold {
  font-weight: 700;
}
.font-semibold {
  font-weight: 600;
}
.mt-4 {
  margin-top: var(--space-4);
}
.mt-8 {
  margin-top: var(--space-8);
}
.mb-4 {
  margin-bottom: var(--space-4);
}
.mb-8 {
  margin-bottom: var(--space-8);
}
.hidden {
  display: none;
}

@media (min-width: 768px) {
  .hidden-desktop {
    display: none;
  }
}

@media (max-width: 767px) {
  .hidden-mobile {
    display: none;
  }
}