/* ========== DESIGN TOKENS ========== */
:root, [data-theme="light"] {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --color-bg:             #0c0f14;
  --color-surface:        #12151c;
  --color-surface-2:      #181c25;
  --color-surface-offset: #1e222d;
  --color-border:         #2a2f3d;
  --color-divider:        #232838;
  --color-text:           #e4e6ec;
  --color-text-muted:     #8a8f9f;
  --color-text-faint:     #555b6e;

  --color-stargate:    #ef4444;
  --color-hyperscaler: #3b82f6;
  --color-neocloud:    #8b5cf6;
  --color-sovereign:   #f59e0b;
  --color-independent: #10b981;
  --color-accent:      #3b82f6;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
}

[data-theme="light"] {
  --color-bg:             #f0f2f5;
  --color-surface:        #ffffff;
  --color-surface-2:      #f7f8fa;
  --color-surface-offset: #ebedf0;
  --color-border:         #d4d7de;
  --color-divider:        #e2e5ea;
  --color-text:           #1a1d24;
  --color-text-muted:     #5f6577;
  --color-text-faint:     #9ca0ae;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
}

/* ========== BASE RESET ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
a, button { transition: color var(--transition-interactive), background var(--transition-interactive), border-color var(--transition-interactive), box-shadow var(--transition-interactive); }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========== HEADER ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-icon { color: var(--color-accent); flex-shrink: 0; }

.logo-text {
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.025em;
  white-space: nowrap;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.search-box {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  min-width: 240px;
}

.search-box svg { color: var(--color-text-muted); flex-shrink: 0; }

.search-box input {
  background: transparent;
  border: none;
  outline: none;
  font-size: var(--text-sm);
  color: var(--color-text);
  width: 100%;
}

.search-box input::placeholder { color: var(--color-text-faint); }

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
}

.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-offset); }

/* ========== STATS BAR ========== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-6) 0;
}

.stat-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  text-align: center;
}

.stat-value {
  display: block;
  font-size: var(--text-xl);
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -0.03em;
  color: var(--color-accent);
}

.stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ========== FILTERS BAR ========== */
.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-btn {
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.filter-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

/* ========== MAP CONTAINER ========== */
.map-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-6);
}

#map {
  width: 100%;
  height: 70vh;
  min-height: 500px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

/* Leaflet overrides */
.leaflet-container {
  background: var(--color-bg) !important;
  font-family: var(--font-body) !important;
}

.leaflet-control-zoom a {
  background: var(--color-surface) !important;
  color: var(--color-text) !important;
  border-color: var(--color-border) !important;
}

.leaflet-control-attribution {
  background: var(--color-surface) !important;
  color: var(--color-text-faint) !important;
  font-size: 10px !important;
}

.leaflet-control-attribution a { color: var(--color-text-muted) !important; }

/* Custom popup */
.leaflet-popup-content-wrapper {
  background: var(--color-surface) !important;
  color: var(--color-text) !important;
  border-radius: var(--radius-lg) !important;
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-lg) !important;
  padding: 0 !important;
  max-width: 360px !important;
}

.leaflet-popup-content {
  margin: 0 !important;
  font-size: var(--text-sm) !important;
  line-height: 1.6 !important;
}

.leaflet-popup-tip {
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border) !important;
  box-shadow: none !important;
}

.leaflet-popup-close-button {
  color: var(--color-text-muted) !important;
  font-size: 18px !important;
  top: 8px !important;
  right: 10px !important;
}

/* Popup content styles */
.popup-inner { padding: var(--space-4); }
.popup-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.popup-cat-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.popup-project-name {
  font-weight: 700;
  font-size: var(--text-sm);
  line-height: 1.3;
}
.popup-company {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.popup-details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
}
.popup-detail-label {
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.popup-detail-value {
  color: var(--color-text);
  font-weight: 500;
}
.popup-source {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
  font-size: 11px;
  color: var(--color-text-faint);
}
.popup-source a {
  color: var(--color-accent);
  text-decoration: none;
}
.popup-source a:hover { text-decoration: underline; }

/* Marker pulse animation */
.pulse-marker {
  border-radius: 50%;
  animation: pulse-ring 2.5s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse-ring {
  0%, 100% { opacity: 0.85; box-shadow: 0 0 0 0 currentColor; }
  50% { opacity: 1; box-shadow: 0 0 0 6px transparent; }
}

/* ========== LEGEND ========== */
.legend-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-8);
}

.legend-inner {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
}

.legend-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.legend-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.legend-note {
  font-size: 11px;
  color: var(--color-text-faint);
  margin-top: var(--space-3);
}

/* ========== DATA TABLE ========== */
.data-table-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-10);
}

.section-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: var(--text-sm);
}

th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  position: sticky;
  top: 0;
  background: var(--color-surface-2);
}

th:hover { color: var(--color-text); }

td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
  white-space: nowrap;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--color-surface-2); }

.status-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-construction { background: rgba(59,130,246,0.15); color: #60a5fa; }
.status-announced { background: rgba(245,158,11,0.15); color: #fbbf24; }
.status-groundbreaking { background: rgba(139,92,246,0.15); color: #a78bfa; }
.status-partial { background: rgba(16,185,129,0.15); color: #34d399; }

/* ========== FOOTER ========== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6);
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-attribution {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
}

.footer-attribution:hover { color: var(--color-text-muted); }

/* ========== MOBILE ========== */
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; }
  .search-box { min-width: 0; flex: 1; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .filters-bar { flex-direction: column; }
  #map { height: 50vh; min-height: 350px; }
  .legend-items { flex-direction: column; gap: var(--space-2); }
  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr 1fr; gap: var(--space-2); }
  .stat-item { padding: var(--space-3); }
  .stat-value { font-size: var(--text-lg); }
}