body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f1f5f9;
  color: #1f2937;
}

.container {
  max-width: 960px;
  margin: auto;
  padding: 14px;
}

/* ===== Header ===== */
.site-header {
  background: linear-gradient(135deg, #1e3a8a, #2548a8);
  color: #fff;
  position: sticky;
  align-items: center;
  top: 0;  
  z-index: 1000;
}

.header-container {
  display: flex;
  max-width: 960px;
  align-items: center;
  justify-content: space-between;
  margin: auto;
  padding: 10px 14px;
}

/* ===== Logo ===== */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
}


/* ===== Navigation ===== */
.site-nav ul {
  display: flex;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: #e5e7eb;
  text-decoration: none;
  font-weight: 500;
}

.site-nav a:hover {
  color: #ffffff;
}

/* ===== Hamburger Button ===== */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  transition: 0.3s;
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: #1e3a8a;
    display: none;
  }

  .site-nav ul {
    flex-direction: column;
  }

  .site-nav li {
    border-bottom: 1px solid #3160df;
  }

  .site-nav a {
    display: block;
    padding: 14px;
    font-size: 16px;
  }

  .site-nav.active {
    display: block;
  }
}

.header {
  background: linear-gradient(135deg, #1e3a8a, #2548a8);
  color: #fff;
  padding-bottom: 10px;
}


.tagline {
  font-size: 14px;
  opacity: 0.9;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  margin-top: 10px;
}

.nav a {
  color: #e5e7eb;
  text-decoration: none;
  margin-right: 14px;
  font-size: 14px;
}

.nav a:hover {
  text-decoration: underline;
}

.section {
  background: #ffffff;
  padding: 16px;
  margin-bottom: 16px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.section h2 {
  margin-top: 0;
  font-size: 18px;
}

.card {
    background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 999px;
  font-weight: bold;
}

.badge.green {
  background: #dcfce7;
  color: #166534;
}

.badge.yellow {
  background: #fef9c3;
  color: #854d0e;
}

.badge.red {
  background: #fee2e2;
  color: #7f1d1d;
}

.footer {
  background: #1e3a8a;
  color: #9ca3af;
  font-size: 13px;
  text-align: center;
  padding: 16px 0;
}

/* ===== Table Wrapper ===== */
.table-wrapper {
  overflow-x: auto;
  margin-top: 10px;
}

/* ===== Main Table ===== */
.holiday-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  background: #ffffff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

/* ===== Table Header ===== */
.holiday-table thead th {
  background: linear-gradient(135deg, #1e293b, #0f172a);
  color: #ffffff;
  padding: 12px 10px;
  text-align: left;
  font-weight: 600;
  font-size: 14px;
  border-bottom: 2px solid #020617;
}

/* ===== Table Body ===== */
.holiday-table tbody td {
  padding: 12px 10px;
  border-bottom: 1px solid #e5e7eb;
  vertical-align: middle;
}

/* Alternating row colors */
.holiday-table tbody tr:nth-child(even) {
  background: #f9fafb;
}

.holiday-table tbody tr:nth-child(odd) {
  background: #ffffff;
}

/* Hover effect */
.holiday-table tbody tr:hover {
  background: #eef2ff;
}

/* ===== Highlight Important Columns ===== */
.holiday-table td:nth-child(1) {
  font-weight: 600;
  color: #1f2937;
}

.holiday-table td:nth-child(3) {
  font-weight: 600;
}

/* ===== Traffic & Status Coloring ===== */
.traffic.high {
  color: #b45309;
  font-weight: 700;
}

.traffic.very-high {
  color: #991b1b;
  font-weight: 800;
}

/* ===== Overlap / Special Rows ===== */
.overlap {
  background: #fff7ed !important;
}

/* ===== Badges ===== */
.badge {
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  margin-left: 6px;
  display: inline-block;
}

.badge.peak {
  background: #dc2626;
  color: #ffffff;
}

.badge.weekend {
  background: #2563eb;
  color: #ffffff;
}

.badge.overlap {
  background: #f59e0b;
  color: #ffffff;
}

/* ===== Buttons ===== */
.btn-traffic {
  background: #0f172a;
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  text-decoration: none;
  display: inline-block;
  margin: 2px;
}

.btn-traffic:hover {
  background: #1e293b;
}

/* ===== Mobile Optimization ===== */
@media (max-width: 600px) {
  .holiday-table {
    font-size: 13px;
  }

  .holiday-table thead th {
    font-size: 13px;
  }

  .btn-traffic {
    padding: 6px 10px;
  }
}


.exchange-card {
  background: linear-gradient(135deg, #2b5ac7, #2d61b6);
  color: #fff;
  padding: 16px;
  border-radius: 12px;
  margin: 16px 0;
  text-align: center;
  box-shadow: 0 6px 15px rgba(0,0,0,0.15);
}

.exchange-title {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 6px;
}

.exchange-rate {
  font-size: 20px;
  font-weight: 700;
  display: flex;
  justify-content: center;
  gap: 10px;
  align-items: center;
}

.exchange-note {
  font-size: 12px;
  opacity: 0.7;
  margin-top: 6px;
}