:root,
[data-theme="dark"] {
  --page-bg: #0d1117;
  --card-bg: #161b22;
  --card-hover: #1c2128;
  --border: #30363d;
  --border-subtle: #21262d;
  --text-primary: #e6edf3;
  --text-muted: #7d8590;
  --text-faint: #484f58;
  --input-bg: #0d1117;
  --input-border: #30363d;
  --accent-blue: #388bfd;
  --accent-blue-bg: rgba(56,139,253,0.12);
  --accent-blue-hover: rgba(56,139,253,0.20);
  --accent-blue-border: rgba(56,139,253,0.44);
  --ghost-hover-border: rgba(56,139,253,0.26);
  --export-hover-border: rgba(56,139,253,0.40);
  --green: #3fb950;
  --green-bg: rgba(63,185,80,0.12);
  --green-border: rgba(63,185,80,0.25);
  --amber: #d29922;
  --amber-bg: rgba(210,153,34,0.12);
  --amber-border: rgba(210,153,34,0.3);
  --ip-color: #e6edf3;
  --pill-bg: #1c2128;
  --marker-outer: rgba(56,139,253,0.2);
  --search-btn-bg: #388bfd;
  --search-btn-text: #ffffff;
  --primary-btn-bg: rgba(56,139,253,0.12);
  --primary-btn-border: rgba(56,139,253,0.44);
  --primary-btn-text: #388bfd;
  --primary-btn-hover-bg: rgba(56,139,253,0.20);
}

[data-theme="light"] {
  --page-bg: #f4f6f9;
  --card-bg: #ffffff;
  --card-hover: #f8fafc;
  --border: #e2e7ee;
  --border-subtle: #edf0f4;
  --text-primary: #1a2332;
  --text-muted: #6b7a8f;
  --text-faint: #a0aab8;
  --input-bg: #f4f6f9;
  --input-border: #d0d7de;
  --accent-blue: #0969da;
  --accent-blue-bg: rgba(9,105,218,0.08);
  --accent-blue-hover: rgba(9,105,218,0.14);
  --accent-blue-border: rgba(9,105,218,0.44);
  --ghost-hover-border: rgba(9,105,218,0.26);
  --export-hover-border: rgba(9,105,218,0.40);
  --green: #1a7f37;
  --green-bg: rgba(26,127,55,0.08);
  --green-border: rgba(26,127,55,0.25);
  --amber: #9a6700;
  --amber-bg: rgba(154,103,0,0.08);
  --amber-border: rgba(154,103,0,0.25);
  --ip-color: #1a2332;
  --pill-bg: #eef2f7;
  --marker-outer: rgba(9,105,218,0.2);
  --search-btn-bg: #0969da;
  --search-btn-text: #ffffff;
  --primary-btn-bg: rgba(9,105,218,0.08);
  --primary-btn-border: rgba(9,105,218,0.44);
  --primary-btn-text: #0969da;
  --primary-btn-hover-bg: rgba(9,105,218,0.14);
}

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

.theme-transition,
.theme-transition * {
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--page-bg);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app-container {
  max-width: 1024px;
  margin: 0 auto;
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* --- Header --- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 4px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.header-title {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulseDot 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--pill-bg);
  color: var(--text-muted);
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.theme-toggle-btn:hover {
  background: var(--card-hover);
  color: var(--text-primary);
}

.theme-toggle-icon {
  display: flex;
  align-items: center;
}

/* --- Cards --- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
}

.hero-card {
  padding: 24px;
}

.search-card {
  padding: 16px;
}

/* --- Micro Label --- */
.micro-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* --- Hero IP --- */
.hero-ip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ip-color);
  cursor: text;
  user-select: all;
  margin-bottom: 20px;
  word-break: break-all;
}

/* --- Pills --- */
.pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 9999px;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid;
}

.pill-blue {
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
  border-color: rgba(56,139,253,0.13);
}

[data-theme="light"] .pill-blue {
  border-color: rgba(9,105,218,0.13);
}

.pill-green {
  background: var(--green-bg);
  color: var(--green);
  border-color: var(--green-border);
}

.pill-amber {
  background: var(--amber-bg);
  color: var(--amber);
  border-color: var(--amber-border);
}

/* --- Action Buttons --- */
.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 0.5rem;
  border: 1px solid;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background: var(--primary-btn-bg);
  border-color: var(--primary-btn-border);
  color: var(--primary-btn-text);
}

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

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
}

.btn-ghost:hover {
  background: var(--accent-blue-bg);
  border-color: var(--ghost-hover-border);
  color: var(--accent-blue);
}

.btn-search {
  background: var(--search-btn-bg);
  color: var(--search-btn-text);
  border-color: transparent;
  padding: 10px 20px;
}

.btn-search:hover {
  opacity: 0.9;
}

.btn-export {
  padding: 6px 12px;
  font-size: 0.75rem;
}

/* --- VPN Warning --- */
.vpn-warning {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 0.5rem;
  background: var(--amber-bg);
  border: 1px solid var(--amber-border);
  animation: fadeIn 0.2s ease-out forwards;
}

.vpn-title {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--amber);
  margin-bottom: 2px;
}

.vpn-desc {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  color: var(--text-muted);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- Search --- */
.search-row {
  display: flex;
  gap: 8px;
}

.search-input {
  flex: 1;
  padding: 10px 16px;
  border-radius: 0.5rem;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.search-input:focus {
  border-color: var(--accent-blue);
}

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

/* --- Details Section --- */
.details-section {
  animation: slideDown 0.25s ease-out forwards;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.details-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 16px;
  margin-bottom: 16px;
}

.data-rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.detail-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 0.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 3px solid;
  position: relative;
  transition: background-color 0.2s ease;
}

.detail-row:hover {
  background: var(--card-hover);
}

.row-stripe {
  display: none;
}

.row-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.row-content {
  flex: 1;
  min-width: 0;
}

.row-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.row-value {
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.row-value.mono {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

.row-copy-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s ease, color 0.2s ease, background-color 0.2s ease;
  flex-shrink: 0;
}

.detail-row:hover .row-copy-btn {
  opacity: 1;
}

.row-copy-btn:hover {
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
}

.row-copy-btn.copied {
  opacity: 1;
  color: var(--green);
}

/* --- Map --- */
.map-container {
  border-radius: 0.75rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 380px;
}

.map-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.map-header-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.map-leaflet {
  flex: 1;
  width: 100%;
  min-height: 336px;
  z-index: 1;
}

/* Leaflet overrides */
.leaflet-container {
  background: var(--card-bg) !important;
}

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

.leaflet-control-attribution {
  background: rgba(0,0,0,0.5) !important;
  color: var(--text-muted) !important;
}

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

/* Custom marker */
.custom-marker {
  width: 32px;
  height: 32px;
  position: relative;
}

/* --- Export Bar --- */
.export-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-radius: 0.75rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
}

.export-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.export-buttons {
  display: flex;
  gap: 6px;
}

.btn-export:hover {
  background: var(--accent-blue-bg) !important;
  border-color: var(--export-hover-border) !important;
  color: var(--accent-blue) !important;
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 20px;
  border-radius: 0.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 9999;
}

.toast.show {
  opacity: 1;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .app-container {
    padding: 20px 16px;
  }

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

  .hero-ip {
    font-size: 1.6rem;
  }

  .export-bar {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
}