:root {
  --bg: #0f1720;
  --panel: #1a2432;
  --panel-2: #223044;
  --border: #2d3b4f;
  --text: #e6edf3;
  --text-dim: #8b98a9;
  --accent: #3b82f6;
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); min-height: 100vh; }
#login-screen { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; }
.login-box { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 32px 28px; width: 100%; max-width: 340px; }
.login-box h1 { font-size: 18px; margin: 0 0 4px; }
.login-box p { color: var(--text-dim); font-size: 13px; margin: 0 0 20px; }
input, select, textarea, button { font-family: inherit; font-size: 14px; }
input, select, textarea {
  width: 100%; padding: 10px 12px; margin-bottom: 12px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 8px; color: var(--text);
}
button { cursor: pointer; border: none; border-radius: 8px; padding: 10px 16px; background: var(--accent); color: white; font-weight: 600; }
button:hover { opacity: 0.9; }
button.secondary { background: var(--panel-2); border: 1px solid var(--border); }
#error-msg { color: var(--red); font-size: 13px; margin-bottom: 12px; min-height: 16px; }

#app { display: none; max-width: 1100px; margin: 0 auto; padding: 16px; }
header.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }
header.topbar h1 { font-size: 16px; margin: 0; }
header.topbar .who { color: var(--text-dim); font-size: 13px; }

nav.tabs { display: flex; gap: 6px; margin-bottom: 20px; flex-wrap: wrap; }
nav.tabs button { background: var(--panel); color: var(--text-dim); border: 1px solid var(--border); }
nav.tabs button.active { background: var(--accent); color: white; border-color: var(--accent); }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 24px; }
.kpi-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.kpi-card .label { color: var(--text-dim); font-size: 12px; margin-bottom: 6px; }
.kpi-card .value { font-size: 22px; font-weight: 700; }
.kpi-card.warn .value { color: var(--amber); }
.kpi-card.danger .value { color: var(--red); }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; margin-bottom: 16px; }
.panel h2 { font-size: 14px; margin: 0 0 12px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; align-items: end; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--text-dim); font-weight: 600; font-size: 12px; text-transform: uppercase; }
.badge { padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge.open, .badge.breakdown { background: rgba(239,68,68,0.15); color: var(--red); }
.badge.in_progress, .badge.maintenance { background: rgba(245,158,11,0.15); color: var(--amber); }
.badge.completed, .badge.running { background: rgba(34,197,94,0.15); color: var(--green); }

.table-scroll { overflow-x: auto; }
.hidden { display: none !important; }