:root {
  --bg:        #f1f5f9;
  --card-bg:   #ffffff;
  --text:      #0f172a;
  --text-muted:#64748b;
  --border:    #e2e8f0;
  --accent:    #6366f1;
  --success:   #22c55e;
  --warning:   #f59e0b;
  --danger:    #ef4444;
  --shadow:    0 1px 3px rgba(0,0,0,0.07);
}
body.dark-mode {
  --bg:        #0f172a;
  --card-bg:   #1e293b;
  --text:      #f1f5f9;
  --text-muted:#94a3b8;
  --border:    #334155;
  --shadow:    0 1px 3px rgba(0,0,0,0.25);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 14px;
  transition: background 0.2s, color 0.2s;
  min-height: 100vh;
}

/* TOP BAR */
.top-bar {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0.65rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
.top-bar-title { font-weight: 700; font-size: 1rem; flex: 1; }
.top-bar-meta  { font-size: 0.78rem; color: var(--text-muted); }
.top-bar-actions { display: flex; align-items: center; gap: 0.5rem; }
.btn-icon {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: background 0.15s;
}
.btn-icon:hover { background: var(--border); }

/* MAIN */
.main { max-width: 960px; margin: 0 auto; padding: 1.25rem; }

/* CARDS */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.card-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* STAT GRID */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 0.75rem;
  text-align: center;
  box-shadow: var(--shadow);
}
.stat-value { font-size: 1.65rem; font-weight: 700; line-height: 1.2; }
.stat-sub   { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.15rem; }
.stat-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.35rem; }

/* PROGRESS */
.progress-track {
  height: 7px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin: 0.35rem 0 0.2rem;
}
.progress-fill { height: 100%; border-radius: 4px; transition: width 0.5s ease; }

/* DISK */
.disk-row { margin-bottom: 1rem; }
.disk-row:last-child { margin-bottom: 0; }
.disk-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.2rem;
  flex-wrap: wrap;
  gap: 0.25rem;
}
.disk-label { font-size: 0.88rem; font-weight: 600; }
.disk-info  { font-size: 0.78rem; color: var(--text-muted); }

/* CONTAINERS */
.container-list { display: flex; flex-direction: column; gap: 0.4rem; }
.container-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  flex-wrap: wrap;
}
.dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.dot-running { background: var(--success); }
.dot-exited  { background: var(--danger); }
.dot-paused  { background: var(--warning); }
.dot-other   { background: var(--text-muted); }
.container-name  { font-weight: 600; font-size: 0.88rem; flex: 1; min-width: 120px; }
.container-image { font-size: 0.75rem; color: var(--text-muted); }
.container-status{ font-size: 0.75rem; color: var(--text-muted); margin-left: auto; }

/* BADGE */
.badge {
  font-size: 0.7rem;
  border-radius: 999px;
  padding: 1px 7px;
  font-weight: 500;
}
.badge-ok      { background: rgba(34,197,94,0.12);  color: var(--success); border: 1px solid rgba(34,197,94,0.25); }
.badge-warn    { background: rgba(245,158,11,0.12); color: var(--warning); border: 1px solid rgba(245,158,11,0.25); }
.badge-err     { background: rgba(239,68,68,0.12);  color: var(--danger);  border: 1px solid rgba(239,68,68,0.25); }
.badge-muted   { background: rgba(100,116,139,0.1); color: var(--text-muted); border: 1px solid var(--border); }

/* COLORS */
.c-success { color: var(--success) !important; }
.c-warning { color: var(--warning) !important; }
.c-danger  { color: var(--danger)  !important; }
.c-muted   { color: var(--text-muted) !important; }

/* STATUS ROW */
.status-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

/* LOGIN */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.login-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.login-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 0.25rem; }
.login-sub   { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.form-group  { margin-bottom: 1rem; }
.form-label  { display: block; font-size: 0.82rem; font-weight: 500; margin-bottom: 0.3rem; }
.form-input  {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.15s;
}
.form-input:focus { outline: none; border-color: var(--accent); }
.btn-primary {
  width: 100%;
  padding: 0.6rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.error-msg { color: var(--danger); font-size: 0.82rem; margin-top: 0.75rem; min-height: 1.2em; }

/* SKELETON */
.sk { background: var(--border); border-radius: 6px; animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%,100%{ opacity:1 } 50%{ opacity:0.5 } }

@media (max-width: 600px) {
  .stat-value { font-size: 1.3rem; }
  .main { padding: 0.75rem; }
}