:root {
  color-scheme: light dark;
  --bg: #0f172a;
  --panel: #111827;
  --surface: #1f2937;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #f97316;
  --border: #374151;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: linear-gradient(135deg, #0f172a, #111827);
  color: var(--text);
}

.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.card { width: min(460px, 100%); background: rgba(17, 24, 39, 0.92); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }

h1, h2, h3, h4 { margin: 0 0 12px; }
p { color: var(--muted); margin: 0 0 16px; }

label { display: block; margin-bottom: 12px; font-size: 14px; color: #cbd5e1; }
input, select {
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--border);
  background: #111827;
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
}

button {
  border: 1px solid transparent;
  background: var(--primary);
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: not-allowed; }
button.secondary { background: transparent; border-color: var(--border); color: var(--text); }

.error { margin-top: 12px; color: #fca5a5; font-size: 14px; }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: 250px 1fr; }
.sidebar { border-right: 1px solid var(--border); background: rgba(17, 24, 39, 0.85); padding: 20px; }
.brand { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.phase { font-size: 12px; color: var(--muted); margin-bottom: 20px; }

.nav-btn {
  width: 100%; display: block; text-align: left; margin-bottom: 8px;
  background: transparent; border: 1px solid var(--border); color: var(--text);
}
.nav-btn.active { background: rgba(249, 115, 22, 0.2); border-color: #fb923c; }

.main { padding: 20px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px;
  background: rgba(17, 24, 39, 0.75);
}

.grid { margin-top: 16px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.grid.users-grid { grid-template-columns: minmax(0, 2fr) minmax(320px, 1fr); }

.panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(31, 41, 55, 0.75);
  padding: 16px;
}
.panel.wide { min-width: 0; }
.small { font-size: 12px; color: var(--muted); }

.controls { display: grid; grid-template-columns: 1fr 180px auto; gap: 10px; margin-bottom: 12px; }
.controls.four { grid-template-columns: 1fr 180px 180px auto; }
.table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; min-width: 700px; }
th, td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); font-size: 14px; }
.inline-link { background: transparent; border: 0; color: #fdba74; padding: 0; }
.inline-link:hover { text-decoration: underline; }

.pill { display: inline-block; border-radius: 999px; padding: 2px 8px; font-size: 12px; }
.pill.ok { background: rgba(34,197,94,.2); color: #86efac; }
.pill.danger { background: rgba(239,68,68,.2); color: #fca5a5; }

.actions-row { display: flex; gap: 8px; margin: 10px 0 14px; }
.history-list { margin: 0; padding-left: 18px; display: grid; gap: 8px; }

@media (max-width: 1100px) {
  .grid.users-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--border); }
  .grid { grid-template-columns: 1fr; }
  .controls { grid-template-columns: 1fr; }
}


.stats-grid { display:grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap:10px; margin: 12px 0; }
.stat { border:1px solid var(--border); border-radius:10px; padding:10px; background: rgba(17,24,39,.5); display:flex; flex-direction:column; gap:4px; }
.stat strong { font-size:20px; }
@media (max-width:1200px){ .stats-grid{ grid-template-columns: repeat(2,minmax(0,1fr)); } }


.messages-box { border:1px solid var(--border); border-radius:10px; padding:10px; max-height:320px; overflow:auto; display:grid; gap:8px; margin: 10px 0; }
.msg { border:1px solid var(--border); border-radius:10px; padding:8px 10px; }
.msg.admin { background: rgba(249,115,22,.12); }
.msg.user { background: rgba(59,130,246,.12); }
.msg-meta { font-size: 11px; color: var(--muted); margin-bottom: 4px; }