/* ============================================
   🌍 Network Diagnostics Tool - Styles
   参考自 EdgeTunnel 的深色主题设计
   ============================================ */

:root {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --success-color: #00d4ff;
  --error-color: #ff6b6b;
  --warning-color: #ffa502;
  --bg-dark: #0a0e27;
  --bg-darker: #000814;
  --bg-card: #1a1a2e;
  --text-primary: #ecf0f1;
  --text-secondary: #b0b0b0;
  --border-color: #2d2d44;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* ============================================
   基础样式
   ============================================ */

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

html,
body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   导航栏
   ============================================ */

.navbar {
  background: rgba(26, 26, 46, 0.9);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.navbar-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo h1 {
  font-size: 1.5em;
  background: linear-gradient(135deg, var(--primary-color), var(--success-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
}

.nav-links {
  display: flex;
  gap: 15px;
}

/* ============================================
   按钮
   ============================================ */

.btn-primary,
.btn-retry,
.btn-toggle {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 0.95em;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-retry {
  background: linear-gradient(135deg, var(--error-color), #ff5252);
  color: white;
  margin-top: 15px;
}

.btn-retry:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 107, 107, 0.3);
}

.btn-toggle {
  background: transparent;
  color: var(--success-color);
  border: 1px solid var(--success-color);
  padding: 6px 12px;
  font-size: 0.85em;
}

.btn-toggle:hover {
  background: rgba(0, 212, 255, 0.1);
}

/* ============================================
   容器
   ============================================ */

#app {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.container {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 40px 20px;
}

/* ============================================
   加载状态
   ============================================ */

.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  gap: 20px;
}

.spinner {
  width: 60px;
  height: 60px;
  border: 4px solid rgba(102, 126, 234, 0.2);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading-text {
  font-size: 1.1em;
  color: var(--text-secondary);
}

/* ============================================
   错误容器
   ============================================ */

.error-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
}

.error-card {
  background: rgba(255, 107, 107, 0.1);
  border: 2px solid var(--error-color);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  max-width: 500px;
}

.error-card h3 {
  font-size: 1.5em;
  color: var(--error-color);
  margin-bottom: 15px;
}

.error-card p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

/* ============================================
   卡片
   ============================================ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 25px;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h2 {
  font-size: 1.3em;
  color: var(--text-primary);
  margin: 0;
}

.card-body {
  padding: 30px;
}

.card-primary {
  border-left: 4px solid var(--primary-color);
}

.card-secondary {
  border-left: 4px solid var(--success-color);
}

.card-map {
  border-left: 4px solid var(--warning-color);
}

.card-details {
  border-left: 4px solid var(--secondary-color);
}

/* ============================================
   信息网格
   ============================================ */

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.info-item {
  background: rgba(102, 126, 234, 0.05);
  padding: 20px;
  border-radius: 8px;
  border: 1px solid rgba(102, 126, 234, 0.1);
  transition: all 0.3s ease;
}

.info-item:hover {
  background: rgba(102, 126, 234, 0.1);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.info-label {
  display: block;
  font-size: 0.85em;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  display: block;
  font-size: 1.5em;
  color: var(--success-color);
  font-weight: bold;
  margin-bottom: 8px;
  word-break: break-all;
  font-family: 'Courier New', monospace;
}

.info-value .unit {
  font-size: 0.7em;
  color: var(--text-secondary);
  font-weight: normal;
}

.info-desc {
  display: block;
  font-size: 0.75em;
  color: rgba(176, 176, 176, 0.7);
  font-style: italic;
}

/* ============================================
   地图信息
   ============================================ */

.map-info {
  margin-top: 20px;
  padding: 15px;
  background: rgba(102, 126, 234, 0.05);
  border-radius: 8px;
  text-align: center;
}

.map-info p {
  margin: 5px 0;
  color: var(--text-secondary);
}

.map-info p:first-child {
  color: var(--success-color);
  font-weight: bold;
  font-size: 1.1em;
}

/* ============================================
   JSON 输出
   ============================================ */

.json-output {
  background: rgba(0, 0, 0, 0.3);
  padding: 20px;
  border-radius: 8px;
  overflow-x: auto;
  font-family: 'Courier New', 'Monospace';
  font-size: 0.85em;
  color: var(--success-color);
  line-height: 1.6;
  border: 1px solid var(--border-color);
}

/* ============================================
   页脚信息
   ============================================ */

.footer-info {
  text-align: center;
  padding: 30px;
  background: rgba(102, 126, 234, 0.05);
  border-radius: 12px;
  margin-bottom: 30px;
  border: 1px solid var(--border-color);
}

.footer-info p {
  margin: 8px 0;
  font-size: 0.95em;
}

.footer-info p:first-child {
  color: var(--success-color);
  font-weight: 600;
}

.footer-desc {
  color: var(--text-secondary);
  font-size: 0.85em;
}

/* ============================================
   页脚
   ============================================ */

.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 30px 20px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9em;
  margin-top: auto;
}

/* ============================================
   响应式设计
   ============================================ */

@media (max-width: 768px) {
  .navbar-content {
    flex-direction: column;
    gap: 10px;
    padding: 10px 20px;
    height: auto;
  }

  .logo h1 {
    font-size: 1.2em;
  }

  .container {
    padding: 20px;
  }

  .card-header {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

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

  .info-value {
    font-size: 1.2em;
  }

  .json-output {
    font-size: 0.75em;
  }

  #map {
    height: 300px !important;
  }
}

@media (max-width: 480px) {
  .logo h1 {
    font-size: 1em;
  }

  .card-body {
    padding: 15px;
  }

  .info-value {
    font-size: 1em;
  }

  .footer-info {
    padding: 15px;
  }
}

/* ============================================
   Leaflet Map 自定义样式
   ============================================ */

.leaflet-container {
  background: var(--bg-darker) !important;
}

.leaflet-control-container {
  font-family: inherit;
}

.leaflet-control-attribution {
  background: rgba(26, 26, 46, 0.9) !important;
  color: var(--text-secondary) !important;
}

.leaflet-popup-content-wrapper {
  background: var(--bg-card) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 8px !important;
  box-shadow: var(--shadow) !important;
}

.leaflet-popup-content {
  color: var(--text-primary) !important;
  margin: 13px !important;
}

.leaflet-popup-tip {
  background: var(--bg-card) !important;
  border: 1px solid var(--border-color) !important;
}

.leaflet-marker-icon {
  filter: hue-rotate(200deg) saturate(1.2);
}