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

:root {
  --sidebar-bg:      #0f172a;
  --sidebar-text:    #94a3b8;
  --sidebar-hover:   #1e293b;
  --sidebar-active:  #3b82f6;
  --main-bg:         #f1f5f9;
  --card-bg:         #ffffff;
  --text-primary:    #1e293b;
  --text-secondary:  #64748b;
  --border:          #e2e8f0;
  --primary:         #3b82f6;
  --primary-hover:   #2563eb;
  --success:         #22c55e;
  --warning:         #f59e0b;
  --error:           #ef4444;
  --terminal-bg:     #0d1117;
  --terminal-text:   #c9d1d9;
  --terminal-green:  #3fb950;
  --terminal-red:    #f85149;
  --terminal-dim:    #484f58;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--main-bg);
}

/* ── Layout ──────────────────────────────────────────────────────────────────── */
.layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────────── */
.sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  color: #f8fafc;
  font-size: 15px;
  font-weight: 600;
  border-bottom: 1px solid #1e293b;
}

.sidebar-brand svg { flex-shrink: 0; }

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover {
  background: var(--sidebar-hover);
  color: #f1f5f9;
}

.nav-item.active {
  background: var(--sidebar-active);
  color: #ffffff;
}

.nav-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 12px 8px;
  border-top: 1px solid #1e293b;
}

.nav-item.logout { color: #94a3b8; }
.nav-item.logout:hover { color: var(--error); background: rgba(239,68,68,0.1); }

/* ── Main ────────────────────────────────────────────────────────────────────── */
.main {
  margin-left: 220px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 18px 28px;
}

.page-header h1 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.page-header p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 2px;
}

.page-content {
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ── Cards ───────────────────────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

/* ── Status nodes ────────────────────────────────────────────────────────────── */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.node-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.node-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.node-state {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
}

.state-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.state-dot.primary   { background: var(--success); box-shadow: 0 0 0 3px rgba(34,197,94,0.2); }
.state-dot.secondary { background: var(--primary); box-shadow: 0 0 0 3px rgba(59,130,246,0.2); }
.state-dot.down      { background: var(--error);   box-shadow: 0 0 0 3px rgba(239,68,68,0.2); }
.state-dot.loading   { background: var(--warning);  }

.node-uptime {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ── Status banner ───────────────────────────────────────────────────────────── */
.status-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
}

.status-banner.success { background: rgba(34,197,94,0.1);  color: #16a34a; border: 1px solid rgba(34,197,94,0.3); }
.status-banner.warning { background: rgba(245,158,11,0.1); color: #d97706; border: 1px solid rgba(245,158,11,0.3); }
.status-banner.error   { background: rgba(239,68,68,0.1);  color: #dc2626; border: 1px solid rgba(239,68,68,0.3); }
.status-banner.info    { background: rgba(59,130,246,0.1); color: #2563eb; border: 1px solid rgba(59,130,246,0.3); }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background 0.15s, opacity 0.15s;
  text-decoration: none;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary  { background: var(--primary);  color: #fff; }
.btn-primary:hover:not(:disabled)  { background: var(--primary-hover); }

.btn-success  { background: var(--success);  color: #fff; }
.btn-success:hover:not(:disabled)  { background: #16a34a; }

.btn-ghost    { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover:not(:disabled) { background: var(--main-bg); color: var(--text-primary); }

/* ── Forms ───────────────────────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13.5px;
  color: var(--text-primary);
  background: var(--card-bg);
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
.form-group input.error  { border-color: var(--error); }

.form-hint {
  font-size: 12px;
  color: var(--text-secondary);
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-group { flex: 1; }

.input-with-btn {
  display: flex;
  gap: 8px;
}

.input-with-btn input { flex: 1; }

/* ── Terminal / Log viewer ───────────────────────────────────────────────────── */
.terminal-wrapper {
  position: relative;
}

.terminal-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #161b22;
  padding: 8px 14px;
  border-radius: 8px 8px 0 0;
  border: 1px solid #30363d;
  border-bottom: none;
}

.terminal-title {
  font-size: 12px;
  color: #8b949e;
  font-family: monospace;
}

.terminal {
  background: var(--terminal-bg);
  border: 1px solid #30363d;
  border-radius: 0 0 8px 8px;
  padding: 16px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--terminal-text);
  height: 360px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.terminal:empty::before {
  content: 'Waiting for output...';
  color: var(--terminal-dim);
}

.log-line { display: block; }
.log-line.error { color: var(--terminal-red); }
.log-line.done  { color: var(--terminal-green); }

.copy-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: #21262d;
  border: 1px solid #30363d;
  border-radius: 4px;
  color: #8b949e;
  font-size: 11.5px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.copy-btn:hover { background: #30363d; color: #c9d1d9; }
.copy-btn.copied { color: var(--terminal-green); }

/* ── Logs table ──────────────────────────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead {
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
}

th {
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

td {
  padding: 11px 14px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
}

tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11.5px;
  font-weight: 500;
}

.badge-success { background: rgba(34,197,94,0.12);  color: #16a34a; }
.badge-error   { background: rgba(239,68,68,0.12);  color: #dc2626; }
.badge-warning { background: rgba(245,158,11,0.12); color: #d97706; }
.badge-info    { background: rgba(59,130,246,0.12); color: #2563eb; }

/* ── Login page ──────────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sidebar-bg);
}

.login-box {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 40px;
  width: 360px;
}

.login-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.login-logo h1 {
  color: #f8fafc;
  font-size: 18px;
  font-weight: 600;
}

.login-logo p {
  color: #64748b;
  font-size: 13px;
}

.login-box .form-group label { color: #94a3b8; }
.login-box .form-group input {
  background: #0f172a;
  border-color: #334155;
  color: #f8fafc;
}
.login-box .form-group input:focus { border-color: var(--primary); }

.login-error {
  background: rgba(239,68,68,0.15);
  border: 1px solid rgba(239,68,68,0.3);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 16px;
}

.login-box .btn-primary { width: 100%; justify-content: center; margin-top: 6px; }

/* ── Connection string box ───────────────────────────────────────────────────── */
.conn-string-box {
  background: #0d1117;
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 12px 14px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 12px;
  color: #3fb950;
  word-break: break-all;
  display: none;
}

/* ── Misc ─────────────────────────────────────────────────────────────────────── */
.loading-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warning);
  animation: pulse 1.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-secondary);
}

.empty-state p { font-size: 14px; margin-top: 8px; }