:root {
  --bg-primary: #09090b;
  --bg-surface: #111114;
  --bg-surface-hover: #18181c;
  --bg-card: rgba(18, 18, 22, 0.75);
  --bg-pill: rgba(255, 255, 255, 0.04);
  --bg-pill-hover: rgba(255, 255, 255, 0.08);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --border-focus: rgba(16, 185, 129, 0.5);

  --text-main: #f4f4f5;
  --text-muted: #a1a1aa;
  --text-dim: #71717a;

  --accent-emerald: #10b981;
  --accent-emerald-dim: rgba(16, 185, 129, 0.15);
  --accent-cyan: #38bdf8;
  --accent-cyan-dim: rgba(56, 189, 248, 0.15);
  --accent-amber: #f59e0b;
  --accent-amber-dim: rgba(245, 158, 11, 0.15);
  --accent-rose: #f43f5e;

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

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Ambient Subtle Radial Glow */
.ambient-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 380px;
  background: radial-gradient(ellipse at center, rgba(16, 185, 129, 0.05) 0%, rgba(56, 189, 248, 0.02) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.app-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 28px 24px 60px;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2.5s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.brand-name {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #fff;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--accent-emerald);
  background: var(--accent-emerald-dim);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 2px 7px;
  border-radius: 9999px;
  letter-spacing: 0.5px;
}

.brand-subtitle {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 4px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.stats-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  display: flex;
  flex-direction: column;
  min-width: 78px;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 1px;
}

.highlight-emerald {
  color: var(--accent-emerald) !important;
}

.highlight-cyan {
  color: var(--accent-cyan) !important;
}

/* Refresh & Timer */
.refresh-control {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.timer-widget {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 4px 0 2px;
}

.progress-ring {
  display: block;
  flex-shrink: 0;
}

.progress-ring-circle {
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
  transition: stroke-dashoffset 0.4s ease;
}

.timer-text {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: -0.2px;
  min-width: 34px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  padding: 6px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  border-radius: 4px;
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.btn-icon.spinning svg {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.btn-primary {
  background: var(--accent-emerald);
  color: #000;
  border-color: var(--accent-emerald);
  font-weight: 600;
}

.btn-primary:hover {
  background: #059669;
  border-color: #059669;
}

.btn-secondary {
  background: var(--bg-pill);
  border-color: var(--border-subtle);
  color: var(--text-muted);
}

.btn-secondary:hover {
  background: var(--bg-pill-hover);
  color: #fff;
  border-color: var(--border-hover);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 11px;
}

.btn-xs {
  padding: 4px 8px;
  font-size: 11px;
}

/* Controls Bar */
.controls-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
  padding: 12px 16px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

/* Protocol Pills */
.filter-pills {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  padding: 3px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.pill-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  background: transparent;
  color: var(--text-dim);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.pill-btn:hover {
  color: var(--text-muted);
}

.pill-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

/* Toggle Switch */
.toggle-control {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.toggle-control input {
  display: none;
}

.toggle-slider {
  width: 32px;
  height: 18px;
  background: #27272a;
  border-radius: 9999px;
  position: relative;
  transition: background 0.2s ease;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.toggle-control input:checked + .toggle-slider {
  background: var(--accent-emerald);
}

.toggle-control input:checked + .toggle-slider::after {
  transform: translateX(14px);
}

.toggle-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Search Box */
.search-box {
  flex: 1;
  min-width: 220px;
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 10px;
  color: var(--text-dim);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 7px 28px 7px 32px;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 12px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.15);
}

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

.search-clear {
  position: absolute;
  right: 8px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  padding: 2px 4px;
}

.search-clear:hover {
  color: #fff;
}

/* Select Dropdown */
.select-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.select-wrapper select {
  appearance: none;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 7px 28px 7px 10px;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 12px;
  cursor: pointer;
}

.select-wrapper select:focus {
  outline: none;
  border-color: var(--border-focus);
}

.select-arrow {
  position: absolute;
  right: 9px;
  color: var(--text-dim);
  pointer-events: none;
}

/* Action Buttons Group */
.action-buttons {
  display: flex;
  gap: 8px;
}

/* Main Content & Metadata */
.main-content {
  flex: 1;
  margin-top: 18px;
}

.list-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-dim);
  padding: 0 4px 12px;
}

.checking-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-cyan);
}

.spin-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse-dot 1.2s infinite;
}

/* Proxy Grid & Cards */
.proxy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(285px, 1fr));
  gap: 12px;
}

.proxy-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
  position: relative;
  cursor: pointer;
}

.proxy-card:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.endpoint-group {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--font-mono);
}

.ip-text {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.2px;
}

.port-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

.copy-hint-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 3px;
  border-radius: 4px;
  opacity: 0.6;
  transition: opacity 0.15s, color 0.15s;
}

.proxy-card:hover .copy-hint-btn {
  opacity: 1;
  color: var(--text-muted);
}

.copy-hint-btn:hover {
  color: #fff;
}

.card-middle {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.badge-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.proto-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.proto-tag.proto-http {
  color: #60a5fa;
  background: rgba(96, 165, 250, 0.1);
  border-color: rgba(96, 165, 250, 0.2);
}

.proto-tag.proto-socks4 {
  color: #c084fc;
  background: rgba(192, 132, 252, 0.1);
  border-color: rgba(192, 132, 252, 0.2);
}

.proto-tag.proto-socks5 {
  color: #34d399;
  background: rgba(52, 211, 153, 0.1);
  border-color: rgba(52, 211, 153, 0.2);
}

.latency-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
}

.latency-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.latency-fast {
  color: var(--accent-emerald);
}
.latency-fast .latency-dot {
  background: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
}

.latency-med {
  color: var(--accent-amber);
}
.latency-med .latency-dot {
  background: var(--accent-amber);
}

.latency-slow {
  color: var(--text-dim);
}
.latency-slow .latency-dot {
  background: var(--text-dim);
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 11px;
  color: var(--text-dim);
}

.geo-info {
  display: flex;
  align-items: center;
  gap: 5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.country-flag {
  font-size: 13px;
}

.card-actions-quick {
  display: flex;
  gap: 4px;
}

.quick-action-link {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}

.quick-action-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  margin-top: 20px;
}

.empty-icon {
  font-size: 32px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.empty-state h3 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 6px;
}

.empty-state p {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

/* Pagination */
.pagination-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}

.page-indicator {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
}

/* Footer */
.footer {
  margin-top: auto;
  padding-top: 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-dim);
  border-top: 1px solid var(--border-subtle);
}

.footer-link {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-link:hover {
  color: #fff;
}

.separator {
  margin: 0 6px;
  color: rgba(255, 255, 255, 0.15);
}

/* Toast System */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
  pointer-events: none;
}

.toast {
  background: rgba(18, 18, 22, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-hover);
  color: #fff;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 12px;
  font-family: var(--font-mono);
  box-shadow: 0 10px 25px rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toast-in 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: auto;
}

.toast.toast-exit {
  opacity: 0;
  transform: translateY(8px);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.toast-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

/* Utilities */
.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-right {
    width: 100%;
    justify-content: space-between;
  }
  .controls-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .action-buttons {
    justify-content: space-between;
  }
  .proxy-grid {
    grid-template-columns: 1fr;
  }
}