:root {
  --bg: #080d15;
  --bg-secondary: #0a0f18;
  --panel: #0d1420;
  --card: #0f1724;
  --card-hover: #121a29;
  --text: #f0f4f9;
  --text-secondary: #cbd5e1;
  --muted: #94a3b8;
  --border: #1e293b;
  --border-light: #2d3f5f;
  --up: #10b981;
  --up-dark: #059669;
  --down: #ef4444;
  --down-dark: #dc2626;
  --blue: #3b82f6;
  --accent: #06b6d4;
  --accent-dark: #0891b2;
  --purple: #8b5cf6;
  --ink: #020617;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  --glow-up: 0 0 20px rgba(16, 185, 129, 0.4);
  --glow-down: 0 0 20px rgba(239, 68, 68, 0.4);
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.background-gradient {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 600px;
  background: 
    radial-gradient(circle at 20% 0%, rgba(6, 182, 212, 0.15), transparent 50%),
    radial-gradient(circle at 80% 0%, rgba(139, 92, 246, 0.12), transparent 50%),
    radial-gradient(circle at 50% 100%, rgba(59, 130, 246, 0.08), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ============ HERO ============ */
.hero {
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(6, 182, 212, 0.03), transparent);
  position: relative;
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 16px;
}

.title-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.icon-pulse {
  width: 12px;
  height: 12px;
  background: var(--up);
  border-radius: 50%;
  box-shadow: var(--glow-up);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.15); }
}

.hero h1 {
  font-size: 36px;
  font-weight: 800;
  margin: 0;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.badge-live {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--up);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  animation: pulse 2s ease-in-out infinite;
}

.sub {
  margin: 0 0 28px;
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 700px;
  line-height: 1.7;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  padding: 11px 18px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn.ghost {
  background: rgba(15, 23, 42, 0.6);
  border-color: var(--border-light);
  color: var(--text);
  backdrop-filter: blur(10px);
}

.btn.ghost:hover {
  border-color: var(--accent);
  background: rgba(6, 182, 212, 0.1);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--ink);
  border-color: var(--accent);
  font-weight: 700;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.3);
}

.btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.5);
  filter: brightness(1.1);
}

.btn.primary:active {
  transform: translateY(0);
}

.btn.slim {
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 13px;
  backdrop-filter: blur(10px);
}

.btn.slim:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(6, 182, 212, 0.08);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ============ PILLS ============ */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 6px 12px;
  font-weight: 600;
  font-size: 13px;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.pill.small {
  padding: 4px 10px;
  font-size: 12px;
}

.pill.green {
  background: rgba(16, 185, 129, 0.15);
  color: #6ee7b7;
  border-color: rgba(16, 185, 129, 0.3);
}

.pill.red {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
  border-color: rgba(239, 68, 68, 0.3);
}

.pill.blue {
  background: rgba(59, 130, 246, 0.15);
  color: #93c5fd;
  border-color: rgba(59, 130, 246, 0.3);
}

/* ============ CONTROLS ============ */
.controls {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(12, 1fr);
  background: rgba(13, 20, 32, 0.6);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  margin-bottom: 20px;
}

.ctrl {
  display: flex;
  flex-direction: column;
  gap: 8px;
  grid-column: span 3;
}

.ctrl.grow {
  grid-column: span 4;
}

label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}

label svg {
  opacity: 0.7;
}

.segmented {
  display: flex;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  gap: 4px;
}

.segmented button {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--text-secondary);
  padding: 10px 12px;
  border-radius: 7px;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.segmented button:hover {
  color: var(--text);
  background: rgba(59, 130, 246, 0.1);
}

.segmented button.active {
  background: linear-gradient(135deg, var(--accent), var(--blue));
  color: var(--ink);
  box-shadow: 0 2px 8px rgba(6, 182, 212, 0.3);
  font-weight: 700;
}

.flag {
  font-size: 16px;
}

/* ============ TOGGLE ============ */
.toggle {
  position: relative;
  width: 56px;
  height: 32px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all 0.3s;
}

.toggle:has(input:checked) {
  background: rgba(6, 182, 212, 0.2);
  border-color: var(--accent);
}

.toggle input {
  appearance: none;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}

.toggle .slider {
  pointer-events: none;
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--border-light);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.toggle input:checked + .slider {
  left: 27px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.6);
}

.hint {
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
  text-align: center;
  font-weight: 600;
}

/* ============ META STATS ============ */
.meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.stat-group {
  display: flex;
  gap: 10px;
}

.stat {
  box-shadow: var(--shadow);
  transition: all 0.2s;
}

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

.update-time {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.spacer {
  flex: 1;
}

/* ============ NOTICE ============ */
.notice {
  margin: 20px 0;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.08);
  backdrop-filter: blur(10px);
  color: var(--text-secondary);
  display: flex;
  gap: 12px;
  align-items: flex-start;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.notice-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.notice-content {
  flex: 1;
}

.notice code {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  color: var(--accent);
}

.hidden {
  display: none !important;
}

/* ============ GRID ============ */
.grid {
  display: grid;
  gap: 20px;
  margin-top: 24px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  animation: fadeIn 0.4s ease-out;
}

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

/* ============ CARD ============ */
.card {
  position: relative;
  background: rgba(15, 23, 36, 0.7);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
  animation: cardIn 0.4s ease-out backwards;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.3s; }

.card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-light);
}

.card.up {
  border-color: rgba(16, 185, 129, 0.4);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(15, 23, 36, 0.7));
}

.card.up:hover {
  border-color: rgba(16, 185, 129, 0.6);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.2), var(--shadow-lg);
}

.card.down {
  border-color: rgba(239, 68, 68, 0.4);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.05), rgba(15, 23, 36, 0.7));
}

.card.down:hover {
  border-color: rgba(239, 68, 68, 0.6);
  box-shadow: 0 0 30px rgba(239, 68, 68, 0.2), var(--shadow-lg);
}

.card .top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
  animation: pulse 2s ease-in-out infinite;
}

.dot.up {
  background: var(--up);
  box-shadow: var(--glow-up);
}

.dot.down {
  background: var(--down);
  box-shadow: var(--glow-down);
}

.host {
  flex: 1;
  min-width: 0;
}

.host-name {
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.host-domain {
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
  font-size: 12px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.kv {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 12px;
  margin-top: 12px;
}

.kv code {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  color: var(--down);
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  gap: 12px;
}

.hr {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 12px 0;
}

.actions {
  display: flex;
  gap: 8px;
}

/* ============ SPARKLINE ============ */
.spark {
  width: 100%;
  height: 50px;
  display: block;
  border-radius: 10px;
  background: rgba(10, 19, 34, 0.5);
  border: 1px solid var(--border);
  margin: 12px 0;
  transition: all 0.3s;
}

.card:hover .spark {
  border-color: var(--border-light);
  background: rgba(10, 19, 34, 0.7);
}

/* ============ EMPTY STATE ============ */
.empty {
  margin: 40px 0;
  padding: 60px 40px;
  border: 2px dashed var(--border);
  border-radius: 20px;
  text-align: center;
  color: var(--text-secondary);
}

.empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  opacity: 0.4;
}

.empty-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
}

.empty h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.empty p {
  font-size: 14px;
  color: var(--muted);
}

/* ============ FOOTER ============ */
.foot {
  margin: 40px 0 60px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left, .footer-right {
  font-size: 13px;
}

.muted {
  color: var(--muted);
}

/* ============ TOAST ============ */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(15, 23, 36, 0.95);
  color: var(--text);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 14px 20px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
  max-width: 400px;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.toast-icon {
  font-size: 18px;
}

.toast-message {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 28px;
  }
  
  .ctrl {
    grid-column: span 6 !important;
  }
  
  .ctrl.grow {
    grid-column: span 12 !important;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
  
  .hero-top {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .meta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .stat-group {
    width: 100%;
    justify-content: space-between;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .hero {
    padding: 24px 0;
  }
  
  .controls {
    padding: 16px;
  }
  
  .stat-group {
    flex-direction: column;
    gap: 8px;
  }
  
  .stat {
    width: 100%;
    justify-content: center;
  }
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}