@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors */
  --color-bg: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-text: #334155;
  --color-text-light: #64748B;
  --color-primary: #1E3A8A; /* Dark Blue */
  --color-accent: #10B981; /* Green */
  --color-accent-hover: #059669; /* Darker Green */
  --color-border: #E2E8F0;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  --transition: all 0.3s ease;
}

[data-theme="dark"] {
  --color-bg: #0F172A;
  --color-surface: #1E293B;
  --color-text: #F1F5F9;
  --color-text-light: #94A3B8;
  --color-border: #334155;
  --color-primary: #3B82F6; /* Lighter blue for dark mode */
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: var(--transition);
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.main-navigation ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.main-navigation a {
  color: var(--color-text-light);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: none;
  border: none;
  color: var(--color-text-light);
  cursor: pointer;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border-radius: 50%;
  transition: var(--transition);
}

.theme-toggle:hover {
  background-color: var(--color-bg);
  color: var(--color-primary);
}

/* Main Content Padding from Fixed Header */
.site-main {
  margin-top: 70px;
  min-height: calc(100vh - 70px - 100px); /* 100px is approx footer height */
  padding: 3rem 0;
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 0.95rem;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
}

.btn-outline {
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
}

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

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  margin-top: 3rem;
  text-align: center;
  color: var(--color-text-light);
}

.site-footer p {
  font-size: 0.9rem;
}

.site-footer .sources {
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

.site-footer .sources a {
  color: var(--color-text-light);
  text-decoration: underline;
}

.site-footer .sources a:hover {
  color: var(--color-primary);
}

/* Utilities */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-6 { margin-bottom: 3rem; }
.mt-4 { margin-top: 2rem; }

.section-title {
  font-size: 1.75rem;
  color: var(--color-text);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* Tables */
.table-responsive {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
  background-color: var(--color-surface);
}

.data-table th, .data-table td {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background-color: var(--color-bg);
  color: var(--color-text-light);
  font-weight: 500;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.data-table tr:hover td {
  background-color: rgba(16, 185, 129, 0.05);
}

.data-table tr:last-child td {
  border-bottom: none;
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  background-color: var(--color-bg);
  color: var(--color-text-light);
}

.badge.live {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-accent);
}

/* Page titles */
.page-header {
  margin-bottom: 2.5rem;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}