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

:root {
  --color-primary: #dc2626;
  --color-primary-dark: #b91c1c;
  --color-primary-light: #fef2f2;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-dark: #1c1917;
  --color-gray-900: #292524;
  --color-gray-700: #44403c;
  --color-gray-500: #78716c;
  --color-gray-300: #d6d3d1;
  --color-gray-100: #f5f5f4;
  --color-white: #ffffff;
  --color-success: #16a34a;
  --color-error: #dc2626;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition: 0.25s ease;
}

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

body {
  font-family: var(--font-sans);
  color: var(--color-gray-700);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* === Typography === */
h1, h2, h3, h4 {
  color: var(--color-dark);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

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

section {
  padding: 80px 0;
}

/* === Header === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-gray-100);
  transition: var(--transition);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

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

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 28px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-gray-700);
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
}

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

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

.lang-switcher {
  display: flex;
  background: var(--color-gray-100);
  border-radius: 8px;
  overflow: hidden;
}

.lang-btn {
  padding: 6px 14px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-gray-500);
  transition: var(--transition);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  margin: 5px 0;
  transition: var(--transition);
}

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-white) 50%, #fef3c7 100%);
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 38, 38, 0.08), transparent 70%);
  pointer-events: none;
}

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

.hero-content {
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  margin-bottom: 20px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text {
  font-size: 1.15rem;
  color: var(--color-gray-500);
  margin-bottom: 36px;
  max-width: 480px;
}

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

.hero-visual {
  position: relative;
  z-index: 1;
}

.hero-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px;
  transform: rotate(2deg);
  transition: var(--transition);
}

.hero-card:hover {
  transform: rotate(0deg);
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.hero-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.hero-card-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.hero-card-subtitle {
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

.hero-card-route {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--color-gray-100);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.hero-card-route .city {
  font-weight: 600;
  font-size: 0.95rem;
}

.hero-card-route .arrow {
  color: var(--color-primary);
  font-weight: bold;
}

.hero-card-days {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-top: 1px solid var(--color-gray-100);
  font-size: 0.9rem;
}

.hero-card-days span:last-child {
  font-weight: 600;
  color: var(--color-primary);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border: none;
  border-radius: var(--radius-xl);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(220, 38, 38, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(220, 38, 38, 0.4);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-gray-700);
  border: 1.5px solid var(--color-gray-300);
}

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

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245, 158, 11, 0.4);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* === Benefits === */
.benefits {
  background: var(--color-gray-100);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--color-gray-500);
  max-width: 600px;
  margin: 0 auto;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.benefit-card {
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid transparent;
}

.benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.benefit-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.benefit-card:nth-child(1) .benefit-icon { background: #ecfdf5; }
.benefit-card:nth-child(2) .benefit-icon { background: #fef3c7; }
.benefit-card:nth-child(3) .benefit-icon { background: #ede9fe; }
.benefit-card:nth-child(4) .benefit-icon { background: #fce7f3; }

.benefit-card h3 {
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 0.95rem;
  color: var(--color-gray-500);
}

/* === How It Works === */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 0 auto 20px;
}

.step h3 {
  margin-bottom: 10px;
}

.step p {
  font-size: 0.95rem;
  color: var(--color-gray-500);
  max-width: 280px;
  margin: 0 auto;
}

/* === Form === */
.form-section {
  background: linear-gradient(180deg, var(--color-white), var(--color-primary-light));
}

.form-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 48px;
  border: 1px solid var(--color-gray-100);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
}

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

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.form-group label .label-icon {
  font-size: 1rem;
}

.form-group select {
  padding: 12px 16px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-dark);
  background: var(--color-white);
  cursor: pointer;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.form-group input[type="text"],
.form-group input[type="email"] {
  padding: 12px 16px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--color-dark);
  background: var(--color-white);
  transition: var(--transition);
  outline: none;
  width: 100%;
}

.form-group select:focus,
.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.radio-group,
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.radio-option,
.checkbox-option {
  position: relative;
}

.radio-option input,
.checkbox-option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio-option label,
.checkbox-option label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-xl);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 0;
}

.radio-option input:checked + label,
.checkbox-option input:checked + label {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.radio-option label:hover,
.checkbox-option label:hover {
  border-color: var(--color-primary);
}

.cities-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 48px;
  padding: 8px;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  align-items: flex-start;
}

.cities-container:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.cities-placeholder {
  color: var(--color-gray-500);
  font-size: 0.9rem;
  padding: 4px 0;
}

.form-divider {
  grid-column: 1 / -1;
  height: 1px;
  background: var(--color-gray-100);
  margin: 8px 0;
}

.form-submit {
  grid-column: 1 / -1;
  text-align: center;
  margin-top: 16px;
}

.form-submit .btn {
  min-width: 280px;
  font-size: 1.05rem;
  padding: 16px 40px;
}

.form-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-gray-500);
  margin-top: 16px;
  grid-column: 1 / -1;
}

/* === Result Modal === */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.modal-header h2 {
  font-size: 1.4rem;
}

.modal-close {
  background: var(--color-gray-100);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--color-gray-300);
  color: var(--color-dark);
}

.program-day {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.program-day:last-child {
  border-bottom: none;
}

.program-day h4 {
  color: var(--color-primary);
  font-size: 1rem;
  margin-bottom: 8px;
}

.program-day p {
  font-size: 0.95rem;
  color: var(--color-gray-700);
}

.program-day ul {
  list-style: none;
  padding: 0;
}

.program-day ul li {
  padding: 4px 0;
  font-size: 0.95rem;
  color: var(--color-gray-700);
}

.program-day ul li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-right: 10px;
  vertical-align: middle;
}

/* === Testimonials === */
.testimonials {
  background: var(--color-gray-100);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.testimonial-stars {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--color-gray-700);
  margin-bottom: 20px;
  line-height: 1.7;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-dark);
}

.testimonial-trip {
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

/* === FAQ === */
.faq {
  background: var(--color-white);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item[open] {
  border-color: var(--color-primary);
}

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--color-primary);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  color: var(--color-primary);
}

.faq-item p {
  padding: 0 24px 18px;
  font-size: 0.95rem;
  color: var(--color-gray-700);
  line-height: 1.7;
}

/* === Footer === */
.footer {
  background: var(--color-dark);
  color: var(--color-gray-300);
  padding: 60px 0 30px;
}

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

.footer-brand .logo {
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--color-gray-500);
  max-width: 300px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul li a {
  font-size: 0.9rem;
  color: var(--color-gray-500);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--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: 0.85rem;
  color: var(--color-gray-500);
}

/* === Toast === */
.toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-white);
  z-index: 300;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
}

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

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

.toast.error {
  background: var(--color-error);
}

/* === Spinner === */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === Responsive === */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    max-width: 400px;
    margin: 0 auto;
  }

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

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

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .steps-grid::before {
    display: none;
  }

  .form-container {
    padding: 24px;
  }

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

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .modal {
    padding: 24px;
  }
}