:root {
  --bg: #0a0f1a;
  --card: #111827;
  --card-hover: #16202f;
  --border: #1e293b;
  --accent: #069bdf;
  --accent-deep: #027bb4;
  --accent-soft: rgba(6, 155, 223, 0.15);
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --text: #e2e8f0;
  --muted: #94a3b8;
}

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

body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Login screen -------------------------------------------------- */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 380px;
}
.login-card img { height: 56px; margin-bottom: 20px; }
.login-card h1 { font-size: 20px; margin-bottom: 4px; }
.login-card p.sub { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
}
.field input:focus { outline: none; border-color: var(--accent); }
button.primary {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 11px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
button.primary:hover { background: var(--accent-deep); }
button.primary:disabled { opacity: 0.6; cursor: not-allowed; }
.login-error {
  background: rgba(239, 68, 68, 0.12);
  color: var(--red);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

/* ---- App shell ------------------------------------------------------ */
#app-shell { display: none; min-height: 100vh; grid-template-columns: 240px 1fr; }
#app-shell.visible { display: grid; }

#sidebar {
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
}
#sidebar .brand { display: flex; align-items: center; gap: 10px; padding: 0 8px 20px; }
#sidebar .brand img { height: 28px; }
#sidebar .brand span { font-weight: 700; font-size: 15px; }
#sidebar nav { flex: 1; overflow-y: auto; }
#sidebar .nav-section-label {
  font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--muted); padding: 16px 12px 6px;
}
#sidebar a.nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px; font-size: 14px;
  color: var(--text); text-decoration: none; margin-bottom: 2px;
}
#sidebar a.nav-link:hover { background: var(--card-hover); }
#sidebar a.nav-link.active { background: var(--accent-soft); color: var(--accent); }
#sidebar .nav-icon { width: 18px; text-align: center; opacity: .8; }
#sidebar .user-box {
  border-top: 1px solid var(--border); padding-top: 12px; margin-top: 12px;
  font-size: 13px; display: flex; align-items: center; justify-content: space-between;
}
#sidebar .user-box .email { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#sidebar button.logout { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 12px; }
#sidebar button.logout:hover { color: var(--red); }

#main { overflow-y: auto; }
#topbar {
  border-bottom: 1px solid var(--border);
  padding: 16px 28px;
  display: flex; align-items: center; justify-content: space-between;
}
#topbar h1 { font-size: 18px; }
#content { padding: 24px 28px; max-width: 1400px; }

/* ---- Shared components ---------------------------------------------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-bottom: 20px; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px;
}
.card h2 { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 10px; }
.card .value { font-size: 28px; font-weight: 700; }
.card .value.ok { color: var(--green); }
.card .value.warn { color: var(--amber); }
.card .value.fail { color: var(--red); }
.card .sub { font-size: 12px; color: var(--muted); margin-top: 4px; }

.badge { display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.ok { background: rgba(34,197,94,.15); color: var(--green); }
.badge.warn { background: rgba(245,158,11,.15); color: var(--amber); }
.badge.fail { background: rgba(239,68,68,.15); color: var(--red); }
.badge.muted { background: rgba(148,163,184,.15); color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--green); }
.dot.warn { background: var(--amber); }
.dot.fail { background: var(--red); }
.dot.muted { background: var(--muted); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }
.empty-state { color: var(--muted); font-size: 13px; padding: 24px 0; text-align: center; }

.panel-title { font-size: 15px; font-weight: 600; margin: 28px 0 12px; }
.panel-title:first-child { margin-top: 0; }

iframe.embed { width: 100%; height: calc(100vh - 130px); border: 1px solid var(--border); border-radius: 12px; background: #fff; }

.notice {
  background: rgba(245,158,11,.1); border: 1px solid rgba(245,158,11,.3);
  border-radius: 10px; padding: 14px 16px; font-size: 13px; color: var(--text); margin-bottom: 16px;
}
.notice a { color: var(--amber); }

.loading { color: var(--muted); font-size: 13px; }