:root {
  --primary-blue: #1d4ed8;
  --primary-blue-dark: #1e3a8a;
  --primary-blue-light: #60a5fa;
  --neutral-900: #0f172a;
  --neutral-700: #334155;
  --neutral-500: #64748b;
  --neutral-100: #f1f5f9;
  --neutral-50: #f8fafc;
  --white: #ffffff;
  --accent-green: #10b981;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --border-radius: 0.5rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  --container: 1200px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--neutral-700);
  background-color: var(--neutral-50);
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--neutral-100);
  transition: all 0.3s ease;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-blue);
  text-decoration: none;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-list a {
  text-decoration: none;
  color: var(--neutral-700);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.mobile-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 0.25rem;
}

.hamburger {
  width: 1.5rem;
  height: 2px;
  background: var(--neutral-700);
  transition: 0.3s;
}

/* Hero */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
  color: white;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 1000 100\" fill=\"none\"><path d=\"M0 0L500 100L1000 0V100H0z\" fill=\"rgba(255,255,255,0.05)\"/></svg>') repeat-x bottom;
}

.hero-content {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  z-index: 1;
  position: relative;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  opacity: 0.95;
}

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--accent-green);
  color: white;
  text-decoration: none;
  font-weight: 600;
  border-radius: var(--border-radius);
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
}

.btn:hover {
  background: #059669;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

/* Sections */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  text-align: center;
  color: var(--neutral-900);
  margin-bottom: var(--spacing-2xl);
}

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

.card {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid var(--neutral-100);
}

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

.icon {
  width: 64px;
  height: 64px;
  background: var(--primary-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

/* Steps */
.steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .steps {
    flex-direction: row;
  }
}

.step {
  flex: 1;
  text-align: center;
  padding: var(--spacing-lg);
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--primary-blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto var(--spacing-md);
  font-size: 1.25rem;
}

/* Map placeholder */
.map-placeholder {
  height: 400px;
  background: linear-gradient(45deg, var(--neutral-100), var(--neutral-50));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neutral-500);
  margin: var(--spacing-xl) 0;
}

/* Form */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--neutral-700);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--neutral-100);
  border-radius: var(--border-radius);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

/* Tracking */
.tracking-container {
  max-width: 600px;
  margin: 0 auto;
}

.tracking-input {
  width: 100%;
  padding: var(--spacing-lg);
  font-size: 1.25rem;
  text-align: center;
  border: 2px solid var(--neutral-100);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-xl);
}

.status-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.status-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.status-dot {
  width: 12px;
  height: 12px;
  background: var(--accent-green);
  border-radius: 50%;
}

.status-inactive {
  background: var(--neutral-300);
}

.status-line {
  flex: 1;
  height: 2px;
  background: var(--neutral-200);
}

/* Partners */
.partners {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
  justify-content: center;
  padding: var(--spacing-2xl) 0;
}

.partner-logo {
  height: 60px;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

.partner-logo:hover {
  opacity: 1;
}

/* Footer */
.footer {
  background: var(--neutral-900);
  color: var(--neutral-100);
  padding: var(--spacing-2xl) var(--spacing-md);
}

.footer-content {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  margin-bottom: var(--spacing-md);
  color: white;
}

.footer-section a {
  color: var(--neutral-100);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--neutral-700);
  font-size: 0.875rem;
}

/* Mobile */
@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
  }

  .nav-list.active {
    display: flex;
  }

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

  .hero {
    text-align: left;
    padding-top: 80px;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease forwards;
}

/* Info tooltip */
.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: var(--primary-blue-light);
  color: var(--white);
  font-size: 0.75rem;
  margin-left: 0.25rem;
  cursor: default;
  position: relative;
}

.info-icon::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--neutral-900);
  color: var(--neutral-50);
  padding: 0.4rem 0.6rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  line-height: 1.3;
  white-space: normal;
  min-width: 220px;
  max-width: 260px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: var(--shadow-md);
  z-index: 10;
}

.info-icon:hover::after {
  opacity: 1;
  transform: translate(-50%, -4px);
}