:root {
  --bg: #0b1220;
  --panel: #111a2e;
  --border: #22304d;
  --text: #e8eefc;
  --muted: #93a4c4;
  --accent: #3b82f6;
  --ok: #34d399;
  --bad: #f87171;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 70% -10%, #16233f 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand-mark { color: var(--accent); font-size: 22px; }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
}
.btn-ghost:hover { border-color: var(--accent); }

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 24px;
}

.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.15; letter-spacing: -0.02em; }

.sub {
  margin-top: 18px;
  max-width: 560px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
}

.status-card {
  margin-top: 44px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 26px;
  min-width: 320px;
}

.status-row { display: flex; align-items: center; gap: 10px; font-size: 15px; }

.dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--muted);
  transition: background 0.3s;
}
.dot.ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot.bad { background: var(--bad); }

.status-meta { margin-top: 8px; color: var(--muted); font-size: 12.5px; }

.footer {
  padding: 20px 32px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

/* ---- auth & dashboard (auth phase) ---- */

.hidden { display: none !important; }

.topnav { display: flex; align-items: center; gap: 14px; }
.whoami { color: var(--muted); font-size: 14px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.auth-card { width: 380px; max-width: 92vw; text-align: left; }

.tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tab {
  flex: 1;
  padding: 9px 0;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  cursor: pointer;
}
.tab.active { color: var(--text); border-color: var(--accent); }

.auth-form { display: flex; flex-direction: column; gap: 14px; }
.auth-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13.5px; color: var(--muted); }
.auth-form input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 15px;
}
.auth-form input:focus { outline: none; border-color: var(--accent); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: 14.5px;
}
.btn-primary:hover { filter: brightness(1.1); }

.form-msg { min-height: 18px; font-size: 13px; color: var(--muted); }

.dash { flex: 1; padding: 36px 40px; width: 100%; max-width: 1100px; margin: 0 auto; }
.dash h2 { font-size: 26px; }
.sub-small { color: var(--muted); font-size: 13.5px; margin-top: 6px; }
.dash-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat h3 { font-size: 13px; color: var(--muted); font-weight: 500; }
.stat-num { font-size: 32px; font-weight: 700; margin-top: 8px; }

/* ---- entity browser (core CRUD phase) ---- */

.entity-browser { display: flex; gap: 20px; align-items: flex-start; }
.entity-nav { display: flex; flex-direction: column; gap: 6px; min-width: 170px; }
.entity-tab {
  text-align: left; padding: 9px 14px; background: none;
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--muted); font-size: 14px; cursor: pointer;
}
.entity-tab.active { color: var(--text); border-color: var(--accent); }
.entity-panel { flex: 1; min-width: 0; }
.entity-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.entity-header h3 { font-size: 18px; }
.btn-small { padding: 6px 12px; font-size: 13px; }
.entity-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.entity-table th {
  text-align: left; color: var(--muted); font-weight: 500; font-size: 12.5px;
  padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.entity-table td { padding: 10px; border-bottom: 1px solid var(--border); }
.entity-table .row-click { cursor: pointer; }
.entity-table .row-click:hover td { background: rgba(59, 130, 246, 0.06); }
.entity-table .empty { color: var(--muted); text-align: center; padding: 28px; }
.entity-form { max-width: 520px; display: flex; flex-direction: column; gap: 12px; }
.entity-form label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: var(--muted); }
.entity-form input[type="text"], .entity-form select, .entity-form textarea {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 9px 11px; color: var(--text); font-size: 14px; font-family: inherit;
}
.entity-form textarea { min-height: 64px; }
.form-actions { display: flex; gap: 10px; margin-top: 6px; }

/* ---- alerts (realtime/reports phase) ---- */
.alerts { margin-bottom: 22px; }
.alerts h3 { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.alerts ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.alerts li { font-size: 13.5px; padding-left: 18px; position: relative; }
.alerts li::before { content: "•"; color: var(--accent); position: absolute; left: 4px; }

/* ---- grouped nav + mobile (mobile-nav phase) ---- */

.entity-group {
  display: flex; justify-content: space-between; align-items: center;
  text-align: left; padding: 9px 14px;
  background: rgba(59, 130, 246, 0.07);
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); font-size: 13.5px; font-weight: 600; cursor: pointer;
}
.entity-group .chevron { color: var(--muted); font-size: 11px; }
.entity-group.expanded { border-color: var(--accent); }
.entity-nav .entity-tab { margin-left: 10px; padding: 7px 12px; font-size: 13.5px; }

.nav-toggle { display: none; }

@media (max-width: 760px) {
  .topbar { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
  .brand-name { font-size: 16px; }
  .whoami { font-size: 12px; max-width: 46vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  .dash { padding: 18px 14px; }
  .dash h2 { font-size: 22px; }

  .dash-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .card.stat { padding: 14px; }
  .stat-num { font-size: 24px; margin-top: 4px; }

  .alerts { padding: 16px; }
  .alerts li { font-size: 13px; }

  /* Nav becomes a drawer behind the ☰ toggle. */
  .entity-browser { flex-direction: column; gap: 12px; }
  .nav-toggle {
    display: block; width: 100%; text-align: left; font-size: 14px;
    background: var(--panel); color: var(--text);
    font-family: inherit; cursor: pointer;
  }
  .entity-nav { display: none; width: 100%; min-width: 0; }
  .entity-nav.open { display: flex; }
  .entity-nav .entity-tab { margin-left: 16px; }

  /* Tables scroll sideways instead of crushing the layout. */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .entity-table { min-width: 560px; }
  .entity-table th, .entity-table td { padding: 8px; font-size: 13px; }

  .entity-form { max-width: 100%; }
  .entity-form input[type="text"], .entity-form select, .entity-form textarea {
    font-size: 16px; /* prevents iOS zoom-on-focus */
  }

  .hero { padding: 32px 16px; }
  .status-card { min-width: 0; width: 100%; }
  .auth-card { width: 100%; }
  .footer { font-size: 11.5px; padding: 14px; }
}