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

:root {
  --bg: #0a0a0f;
  --surface: #12121a;
  --surface-hover: #1a1a26;
  --border: #1e1e2e;
  --text: #e4e4ec;
  --text-secondary: #7c7c8a;
  --text-muted: #52525e;
  --accent: #4f6ef7;
  --accent-hover: #3b5de7;
  --accent-glow: rgba(79, 110, 247, 0.15);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --error: #ef4444;
  --error-glow: rgba(239, 68, 68, 0.2);
  --warning: #f59e0b;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);
}

html { font-size: 15px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ───── Login ───── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
  background: radial-gradient(ellipse at 50% 0%, #12121a 0%, #0a0a0f 70%);
}

.login-container { width: 100%; max-width: 400px; }

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow);
}

.login-header { text-align: center; margin-bottom: 2rem; }

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: 14px;
  margin-bottom: 1rem;
}

.login-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.alert-error {
  background: var(--error-glow);
  color: var(--error);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
  text-align: center;
  border: 1px solid rgba(239,68,68,0.15);
}

.login-form { display: flex; flex-direction: column; gap: 1.25rem; }

.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}
.field input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.field input::placeholder { color: var(--text-muted); }

/* ───── Buttons ───── */
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.8rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .2s, transform .1s;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { transform: scale(0.98); }
.btn-full { width: 100%; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background .2s, color .2s;
  text-decoration: none;
}
.btn-ghost:hover { background: var(--surface-hover); color: var(--text); }

/* ───── Topbar ───── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
}
.topbar-info { display: flex; align-items: center; gap: 1rem; }

.refresh-indicator {
  font-size: 0.75rem;
  color: var(--success);
  opacity: 0.7;
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* ───── Main Layout ───── */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.page-header { margin-bottom: 2rem; }
.page-header h2 {
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.page-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

/* ───── Servers Grid ───── */
.servers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .servers-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ───── Server Card ───── */
.server-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color .3s, box-shadow .3s;
}
.server-card:hover {
  border-color: rgba(255,255,255,0.06);
}
.server-card[data-status="online"] {
  border-color: rgba(16, 185, 129, 0.15);
}
.server-card[data-status="online"]:hover {
  border-color: rgba(16, 185, 129, 0.3);
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.card-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
}
.status-dot.online {
  background: var(--success);
  box-shadow: 0 0 8px var(--success-glow);
}
.status-dot.offline {
  background: var(--text-muted);
}

.status-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.server-card[data-status="online"] .status-label { color: var(--success); }
.server-card[data-status="offline"] .status-label { color: var(--text-muted); }

.card-metrics {
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}
.metric {
  background: var(--bg);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.15rem;
}
.card-subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
}

.card-url {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  transition: color .2s;
}
.card-url:hover { color: var(--accent-hover); text-decoration: underline; }

.card-uptime {
  color: var(--text-muted);
}

/* ───── Action Buttons ───── */
.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.btn {
  padding: 0.55rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
  background: var(--bg);
  color: var(--text-secondary);
  flex: 1;
  min-width: 0;
  text-align: center;
  white-space: nowrap;
}
.btn:hover { background: var(--surface-hover); color: var(--text); }

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

.btn-start:hover { border-color: var(--success); color: var(--success); background: var(--success-glow); }
.btn-stop:hover { border-color: var(--error); color: var(--error); background: var(--error-glow); }
.btn-restart:hover { border-color: var(--warning); color: var(--warning); background: rgba(245,158,11,0.1); }
.btn-rebuild:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-glow); }

.btn-spinner {
  pointer-events: none;
  opacity: 0.7;
}
.btn-spinner::after {
  content: '';
  display: inline-block;
  width: 12px; height: 12px;
  margin-left: 6px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: middle;
}

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

/* ───── Command Output ───── */
.card-output {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, margin .3s ease, opacity .3s ease;
  opacity: 0;
}
.card-output.open {
  max-height: 400px;
  margin-top: 1rem;
  opacity: 1;
  overflow-y: auto;
}
.card-output pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-secondary);
  white-space: pre-wrap;
  word-break: break-all;
}
.card-output pre.error { color: var(--error); }
.card-output pre.success { color: var(--success); }

.card-output::-webkit-scrollbar { width: 4px; }
.card-output::-webkit-scrollbar-track { background: transparent; }
.card-output::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* ───── Mobile ───── */
@media (max-width: 480px) {
  .topbar-inner { padding: 0 1rem; }
  .main { padding: 1.25rem 1rem 3rem; }
  .server-card { padding: 1.25rem; }
  .card-actions { flex-wrap: nowrap; overflow-x: auto; gap: 0.4rem; }
  .btn { font-size: 0.75rem; padding: 0.45rem 0.6rem; flex: 0 0 auto; }
  .page-header h2 { font-size: 1.35rem; }
  .logo-icon { width: 44px; height: 44px; }
  .login-header h1 { font-size: 1.3rem; }
}