:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface2: #243044;
  --border: #2d3a4f;
  --text: #e8eef7;
  --muted: #8b9cb3;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --blue: #3b82f6;
  --radius: 12px;
  font-family: 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

.view { min-height: 100vh; }

/* Login */
.login-card {
  max-width: 400px;
  margin: 10vh auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.brand { text-align: center; margin-bottom: 2rem; }
.brand-icon {
  width: 56px; height: 56px; margin: 0 auto 1rem;
  background: var(--surface2); border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
}
.brand h1 { font-size: 1.5rem; }
.brand p { color: var(--muted); margin-top: 0.25rem; }

#login-form label {
  display: block; margin-bottom: 1rem; font-size: 0.85rem; color: var(--muted);
}
#login-form input {
  display: block; width: 100%; margin-top: 0.35rem;
  padding: 0.65rem 0.85rem; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg); color: var(--text);
}

.error { color: var(--red); font-size: 0.85rem; margin-top: 0.75rem; }

/* Topbar */
.topbar {
  display: flex; justify-content: space-between; align-items: flex-start;
  padding: 1.5rem 2rem; border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.topbar h1 { font-size: 1.35rem; }
.subtitle { color: var(--muted); font-size: 0.9rem; margin-top: 0.25rem; }
.topbar-actions { display: flex; gap: 0.75rem; align-items: center; }
.muted { color: var(--muted); font-size: 0.8rem; }

/* Buttons */
.btn {
  border: none; border-radius: 8px; padding: 0.5rem 1rem;
  font-size: 0.85rem; cursor: pointer; font-weight: 600;
}
.btn.primary { background: var(--blue); color: white; }
.btn.secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn.danger { background: #7f1d1d; color: #fecaca; }
.btn.success { background: #14532d; color: #bbf7d0; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.sm { padding: 0.35rem 0.65rem; font-size: 0.75rem; }

/* Summary */
.summary-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem; padding: 1.5rem 2rem;
}
.summary-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem;
}
.summary-card h4 { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }
.summary-card p { font-size: 1.1rem; margin-top: 0.35rem; word-break: break-all; }
.summary-card p.endpoint { font-size: 0.8rem; line-height: 1.45; }
.summary-card a { color: #93c5fd; text-decoration: none; }
.summary-card a:hover { text-decoration: underline; }

/* Stacks */
.stacks { padding: 0 2rem 2rem; display: flex; flex-direction: column; gap: 1.5rem; }

.stack-section {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.stack-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1rem 1.25rem; background: var(--surface2);
  border-bottom: 1px solid var(--border);
}
.stack-header h2 { font-size: 1rem; }
.stack-meta { color: var(--muted); font-size: 0.85rem; }
.stack-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.services-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem; padding: 1.25rem;
}

.service-card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 1rem;
}
.service-card h3 { font-size: 1rem; margin-bottom: 0.25rem; }
.service-desc { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.75rem; min-height: 2.4em; }

.status-row {
  display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.75rem;
}
.badge {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  padding: 0.2rem 0.5rem; border-radius: 999px;
}
.badge.running, .badge.healthy { background: #14532d; color: #86efac; }
.badge.stopped, .badge.exited, .badge.not_found { background: #7f1d1d; color: #fca5a5; }
.badge.unhealthy { background: #78350f; color: #fcd34d; }
.badge.protected { background: #1e3a5f; color: #93c5fd; }

.meta-line { font-size: 0.75rem; color: var(--muted); margin-bottom: 0.35rem; }

.card-actions { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.75rem; }

/* Logs */
.logs-panel {
  position: fixed; bottom: 0; left: 0; right: 0; height: 40vh;
  background: var(--surface); border-top: 1px solid var(--border);
  display: flex; flex-direction: column; z-index: 100;
}
.logs-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.75rem 1rem; border-bottom: 1px solid var(--border);
}
#logs-content {
  flex: 1; overflow: auto; padding: 1rem;
  font-size: 0.75rem; line-height: 1.4; color: #cbd5e1;
  background: #0a0e14;
}

.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  background: var(--surface2); border: 1px solid var(--border);
  padding: 0.75rem 1.25rem; border-radius: 8px; z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

/* Nav tabs */
.nav-tabs { display: flex; gap: 0.35rem; margin-right: 0.5rem; }
.nav-tab {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  border-radius: 8px; padding: 0.4rem 0.75rem; cursor: pointer; font-weight: 600; font-size: 0.8rem;
}
.nav-tab.active { background: var(--surface2); color: var(--text); border-color: #3b82f6; }

.panel { min-height: 40vh; }

/* Data browser */
.data-browser { padding: 1.25rem 2rem 2rem; }
.data-toolbar {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  margin-bottom: 1rem; flex-wrap: wrap;
}
.data-toolbar-left { display: flex; gap: 0.5rem; flex: 1; min-width: 240px; }
#device-search {
  flex: 1; min-width: 180px; padding: 0.55rem 0.75rem; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
.data-hint { font-size: 0.8rem; }

.data-layout {
  display: grid; grid-template-columns: minmax(240px, 320px) 1fr; gap: 1rem;
  min-height: 60vh;
}
.device-list-panel, .device-detail-panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column;
}
.device-list-header, .device-detail-header {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem;
  padding: 0.85rem 1rem; border-bottom: 1px solid var(--border); background: var(--surface2);
}
.device-list-header h2, .device-detail-header h2 { font-size: 0.95rem; }
.device-list { overflow: auto; max-height: 70vh; padding: 0.5rem; }
.device-row {
  width: 100%; text-align: left; background: var(--bg); border: 1px solid transparent;
  border-radius: 8px; padding: 0.65rem 0.75rem; margin-bottom: 0.4rem;
  color: var(--text); cursor: pointer;
}
.device-row:hover { border-color: var(--border); }
.device-row.active { border-color: #3b82f6; background: #152033; }
.device-row-top { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.device-row-meta { color: var(--muted); font-size: 0.72rem; margin-top: 0.2rem; }

.device-empty {
  padding: 3rem 1.5rem; text-align: center; color: var(--muted);
}
.data-controls { display: flex; gap: 0.6rem; align-items: end; flex-wrap: wrap; }
.data-controls label {
  display: flex; flex-direction: column; gap: 0.2rem;
  font-size: 0.7rem; color: var(--muted);
}
.data-controls select {
  background: var(--bg); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 0.3rem 0.45rem;
}

.data-subtabs {
  display: flex; gap: 0.35rem; padding: 0.65rem 1rem; border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.data-subtab {
  background: transparent; border: 1px solid var(--border); color: var(--muted);
  border-radius: 999px; padding: 0.3rem 0.7rem; cursor: pointer; font-size: 0.75rem; font-weight: 600;
}
.data-subtab.active { background: #1e3a5f; color: #93c5fd; border-color: #3b82f6; }

.data-status { padding: 0.5rem 1rem; font-size: 0.8rem; }
.data-table-wrap { overflow: auto; padding: 0 1rem 1rem; max-height: 62vh; }
.data-block { margin-bottom: 1.25rem; }
.data-block h3 {
  font-size: 0.8rem; color: var(--muted); text-transform: uppercase;
  letter-spacing: 0.04em; margin-bottom: 0.45rem;
}

.data-table {
  width: 100%; border-collapse: collapse; font-size: 0.75rem;
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
}
.data-table th, .data-table td {
  border-bottom: 1px solid var(--border); padding: 0.45rem 0.55rem;
  text-align: left; vertical-align: top; white-space: nowrap; max-width: 420px;
}
.data-table th {
  position: sticky; top: 0; background: var(--surface2); color: var(--muted);
  font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.03em; z-index: 1;
}
.data-table td { overflow: hidden; text-overflow: ellipsis; }
.json-cell {
  display: inline-block; max-width: 380px; white-space: normal; word-break: break-word;
  font-size: 0.7rem; color: #cbd5e1;
}
.cell-null { color: var(--muted); font-style: italic; }

@media (max-width: 640px) {
  .topbar { flex-direction: column; gap: 1rem; }
  .summary-grid, .stacks, .data-browser { padding: 1rem; }
}

@media (max-width: 960px) {
  .data-layout { grid-template-columns: 1fr; }
  .device-list { max-height: 280px; }
}