:root {
  --bg-primary: #0a0e17;
  --bg-surface: #111827;
  --bg-elevated: #161f30;
  --bg-card-inner: #0d1424;
  --bg-input: #0b111e;
  --bg-active: rgba(255, 255, 255, 0.05);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --chili-primary: #e11d48;
  --chili-hover: #be123c;
  --chili-glow: rgba(225, 29, 72, 0.25);

  --accent-cyan: #06b6d4;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-violet: #8b5cf6;
  --accent-blue: #3b82f6;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(225, 29, 72, 0.4);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-subtle);
  --shadow-elevated: 0 16px 36px -4px rgba(0, 0, 0, 0.65), 0 0 0 1px rgba(255, 255, 255, 0.1);

  --transition-fast: all 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  line-height: 1.5;
}

::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #334155; }

/* Navbar */
.chili-navbar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.brand-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #e11d48, #be123c);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.35);
}

.brand-title {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.cluster-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 6px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 30px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot 2s infinite ease-in-out;
}

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

/* Primary Button */
.btn-primary-chili {
  background: linear-gradient(135deg, #e11d48, #be123c);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: var(--transition-fast);
  box-shadow: 0 4px 14px rgba(225, 29, 72, 0.25);
}

.btn-primary-chili:hover {
  background: linear-gradient(135deg, #f43f5e, #e11d48);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(225, 29, 72, 0.4);
}

.btn-ghost {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: var(--transition-fast);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

/* Premium Action Buttons for Records & Mailboxes */
.btn-action-edit {
  background: rgba(56, 189, 248, 0.08);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.2);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0;
}

.btn-action-edit:hover {
  background: rgba(56, 189, 248, 0.22);
  color: #ffffff;
  border-color: rgba(56, 189, 248, 0.45);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.25);
}

.btn-action-delete {
  background: rgba(244, 63, 94, 0.08);
  color: #fb7185;
  border: 1px solid rgba(244, 63, 94, 0.2);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0;
}

.btn-action-delete:hover {
  background: rgba(244, 63, 94, 0.25);
  color: #ffffff;
  border-color: rgba(244, 63, 94, 0.5);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.3);
}

.app-container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 32px 24px 64px 24px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 6px 0;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin: 0;
}

/* Nodes Grid */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.node-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-fast);
}

.node-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.node-role-badge {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.role-master { background: rgba(6, 182, 212, 0.15); color: #22d3ee; border: 1px solid rgba(6, 182, 212, 0.3); }
.role-slave { background: rgba(139, 92, 246, 0.15); color: #a78bfa; border: 1px solid rgba(139, 92, 246, 0.3); }
.role-mail { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }

.node-ip {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.node-desc {
  font-size: 13px;
  color: var(--text-muted);
}

/* Surface Card */
.surface-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.card-header-bar {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.015);
}

.card-header-title {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.modern-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.modern-table th {
  padding: 12px 18px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.modern-table td {
  padding: 13px 18px;
  font-size: 13.5px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.modern-table tr:last-child td { border-bottom: none; }
.modern-table tr:hover td { background: rgba(255, 255, 255, 0.02); }

.domain-link {
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.domain-link:hover { color: var(--chili-primary); }

.tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
}

.tag-green { background: rgba(16, 185, 129, 0.12); color: #34d399; border-color: rgba(16, 185, 129, 0.25); }
.tag-blue { background: rgba(14, 165, 233, 0.12); color: #38bdf8; border-color: rgba(14, 165, 233, 0.25); }
.tag-gray { background: rgba(100, 116, 139, 0.15); color: #94a3b8; }

.font-mono { font-family: var(--font-mono); }

/* Quick Subdomain Bar */
.quick-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.quick-bar-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  flex-wrap: wrap;
}

/* Forms */
.form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-control-custom {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  font-size: 14px;
  transition: var(--transition-fast);
}

.form-control-custom:focus {
  outline: none;
  border-color: var(--chili-primary);
  box-shadow: 0 0 0 3px var(--chili-glow);
  background: #0f172a;
}

.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

.alert-banner {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
}

.alert-success { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.3); color: #34d399; }
.alert-danger { background: rgba(244, 63, 94, 0.15); border: 1px solid rgba(244, 63, 94, 0.3); color: #fb7185; }
.alert-warning { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.3); color: #fbbf24; }
.alert-info { background: rgba(6, 182, 212, 0.15); border: 1px solid rgba(6, 182, 212, 0.3); color: #38bdf8; }

/* SVG Icons Helper */
.icon-svg {
  width: 16px;
  height: 16px;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}