/* ─── Theme Variables ──────────────────────────────── */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-card: #ffffff;
  --bg-sidebar: #0f172a;
  --bg-input: #f1f5f9;
  --bg-hover: #f1f5f9;
  --bg-terminal: #0f172a;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-sidebar: #cbd5e1;
  --text-sidebar-active: #ffffff;
  --border: #e2e8f0;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
}

.dark {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --bg-sidebar: #020617;
  --bg-input: #334155;
  --bg-hover: #334155;
  --bg-terminal: #020617;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-sidebar: #94a3b8;
  --text-sidebar-active: #f1f5f9;
  --border: #334155;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
}

/* ─── Reset & Base ────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  display: flex;
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

/* ─── Sidebar ─────────────────────────────────────── */
.sidebar {
  width: 240px;
  min-height: 100vh;
  background: var(--bg-sidebar);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
}

.sidebar-logo {
  padding: 0 24px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 16px;
}

.sidebar-logo h1 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.sidebar-logo span {
  font-size: 11px;
  color: var(--text-sidebar);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-nav { flex: 1; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 24px;
  color: var(--text-sidebar);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.nav-item:hover {
  color: var(--text-sidebar-active);
  background: rgba(255,255,255,0.05);
}

.nav-item.active {
  color: var(--text-sidebar-active);
  background: rgba(99,102,241,0.15);
  border-left-color: var(--accent);
}

.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ─── Main Content ────────────────────────────────── */
.main {
  margin-left: 240px;
  flex: 1;
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar h2 {
  font-size: 18px;
  font-weight: 600;
}

.content {
  padding: 32px;
}

/* ─── Theme Toggle ────────────────────────────────── */
.theme-toggle {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 16px;
  transition: all 0.15s;
}

.theme-toggle:hover { background: var(--bg-hover); }

/* ─── Cards ───────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s;
}

.card:hover { box-shadow: var(--shadow-lg); }

.card-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.card-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
}

.card-value.small { font-size: 16px; font-weight: 500; }

/* ─── Tables ──────────────────────────────────────── */
.table-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  padding: 12px 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

td {
  padding: 14px 20px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }

/* ─── Status Dot ──────────────────────────────────── */
.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}

.dot-green { background: var(--success); box-shadow: 0 0 6px rgba(34,197,94,0.4); }
.dot-red { background: var(--danger); box-shadow: 0 0 6px rgba(239,68,68,0.4); }
.dot-yellow { background: var(--warning); box-shadow: 0 0 6px rgba(245,158,11,0.4); }
.dot-gray { background: var(--text-secondary); }

/* ─── Buttons ─────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { opacity: 0.9; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px; border-radius: 6px; }

/* ─── Forms ───────────────────────────────────────── */
.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  transition: border-color 0.15s;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

select.form-input { cursor: pointer; }

/* ─── Modal ───────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  width: 480px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
}

.modal h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
}

/* ─── Terminal ────────────────────────────────────── */
.terminal {
  background: var(--bg-terminal);
  border-radius: 12px;
  padding: 20px;
  font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.6;
  color: #a5f3fc;
  max-height: 500px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.terminal .stderr { color: #fca5a5; }
.terminal .info { color: #94a3b8; }

/* ─── Badges ──────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 600;
}

.badge-active { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-inactive { background: rgba(100,116,139,0.15); color: var(--text-secondary); }

/* ─── Detail Sections ─────────────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.detail-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.detail-section h4 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  font-size: 13px;
}

.detail-row .label { color: var(--text-secondary); }
.detail-row .value { font-weight: 500; font-family: 'JetBrains Mono', monospace; font-size: 12px; }

/* ─── Loading Spinner ─────────────────────────────── */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ─── Misc ────────────────────────────────────────── */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mt-4 { margin-top: 16px; }
.text-sm { font-size: 13px; }
.text-muted { color: var(--text-secondary); }
.text-mono { font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 200px; }
.password-field { filter: blur(4px); transition: filter 0.2s; cursor: pointer; }
.password-field.revealed { filter: none; }

/* ─── Login Screen ───────────────────────────────── */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  width: 100%;
  background: var(--bg-primary);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 380px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.login-card h1 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

/* ─── Small spinner (inline) ─────────────────────── */
.spinner-sm { width: 14px; height: 14px; }

/* ─── Loading Bar ────────────────────────────────── */
.loading-bar {
  position: fixed;
  top: 0;
  left: 240px;
  right: 0;
  height: 3px;
  background: var(--accent);
  z-index: 999;
  animation: loading-slide 1.2s ease-in-out infinite;
}

@keyframes loading-slide {
  0%   { transform: translateX(-100%); }
  50%  { transform: translateX(0%); }
  100% { transform: translateX(100%); }
}

/* ─── Mobile Menu Toggle ─────────────────────────── */
.menu-toggle {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 60;
  background: var(--bg-sidebar);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 45;
}

@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .sidebar-overlay.open { display: block; }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .sidebar.open { transform: translateX(0); }

  .main { margin-left: 0; }

  .topbar { padding-left: 56px; }

  .loading-bar { left: 0; }

  .cards-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }

  .table-wrap { overflow-x: auto; }
  table { min-width: 500px; }
}