/* Little Travel Prague - Light Late-2010s Mobile-Optimized Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-light: #eff6ff;
  
  --accent: #0284c7;
  --success: #15803d;
  --success-bg: #f0fdf4;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  background: #ffffff;
  border-bottom: 2px solid var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.nav-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--primary);
  font-weight: 800;
  font-size: 1.25rem;
}

.logo img {
  width: 34px;
  height: 34px;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

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

/* Hero */
.hero {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 0;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid #bfdbfe;
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 1.5rem;
}

/* Late 2010s Card Box */
.card-box {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

/* Trust Grid */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.trust-card {
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  text-align: center;
}

.trust-card strong {
  display: block;
  font-size: 0.85rem;
  color: var(--text-main);
}

.trust-card span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Product Cards */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.product-item {
  background: #ffffff;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.product-item.selected {
  border-color: var(--primary);
  background: var(--primary-light);
}

.product-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.price-tag {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  margin: 0.5rem 0;
}

/* Form Controls */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  background: #ffffff;
  color: var(--text-main);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.15);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

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

.btn-secondary {
  background: #e2e8f0;
  color: var(--text-main);
}

/* Hygiene Step Box */
.hygiene-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.hygiene-item {
  background: var(--success-bg);
  border: 1px solid #bbf7d0;
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.hygiene-item h4 {
  color: var(--success);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

/* Responsive Mobile Improvements */
@media (max-width: 640px) {
  .hero h1 { font-size: 1.75rem; }
  .nav-links { display: none; }
  .card-box { padding: 1rem; }
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

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

.modal-content {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.5rem;
  max-width: 500px;
  width: 100%;
  box-shadow: var(--shadow-md);
}

.footer {
  background: #ffffff;
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 3rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}