:root {
  --af-bg: #f3f5f8;
  --af-surface: #ffffff;
  --af-ink: #1a2332;
  --af-muted: #5b6b7c;
  --af-line: #e2e8f0;
  --af-brand: #0f6e56;
  --af-brand-dark: #0b5542;
  --af-accent: #c45c26;
  --af-sidebar: #10233f;
  --af-sidebar-text: #d7e2f2;
  --af-ok: #157a4b;
  --af-warn: #b7791f;
  --af-err: #c53030;
  --af-radius: 12px;
  --af-shadow: 0 10px 30px rgba(16, 35, 63, 0.08);
  --af-font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--af-font);
  color: var(--af-ink);
  background: linear-gradient(160deg, #eef3f8 0%, #f7f4ef 55%, #eef7f3 100%);
  min-height: 100vh;
}

a { color: var(--af-brand); text-decoration: none; }
a:hover { color: var(--af-brand-dark); }

.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, #10233f 0%, #0c1a30 100%);
  color: var(--af-sidebar-text);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.brand {
  padding: 0.5rem 0.75rem;
}

.brand-mark {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
}

.brand-sub {
  font-size: 0.8rem;
  opacity: 0.7;
  margin-top: 0.15rem;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.nav-list a {
  display: block;
  color: var(--af-sidebar-text);
  padding: 0.7rem 0.9rem;
  border-radius: 8px;
  transition: background 0.15s ease;
}

.nav-list a:hover,
.nav-list a.active {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.sidebar-footer {
  margin-top: auto;
  padding: 0.75rem;
  font-size: 0.8rem;
  opacity: 0.65;
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--af-line);
}

.topbar h1 {
  margin: 0;
  font-size: 1.25rem;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--af-muted);
  font-size: 0.9rem;
}

.content {
  padding: 1.5rem;
}

.card {
  background: var(--af-surface);
  border: 1px solid var(--af-line);
  border-radius: var(--af-radius);
  box-shadow: var(--af-shadow);
  padding: 1.25rem;
}

.card + .card { margin-top: 1rem; }

.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.stat {
  background: var(--af-surface);
  border: 1px solid var(--af-line);
  border-radius: var(--af-radius);
  padding: 1rem 1.15rem;
  box-shadow: var(--af-shadow);
}

.stat .label {
  color: var(--af-muted);
  font-size: 0.85rem;
}

.stat .value {
  font-size: 1.6rem;
  font-weight: 700;
  margin-top: 0.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 0;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--af-brand);
  color: #fff;
}

.btn:hover { background: var(--af-brand-dark); color: #fff; }

.btn-outline {
  background: transparent;
  color: var(--af-ink);
  border: 1px solid var(--af-line);
}

.btn-outline:hover {
  background: #f8fafc;
  color: var(--af-ink);
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.85rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--af-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  border: 1px solid var(--af-line);
  border-radius: 8px;
  padding: 0.65rem 0.75rem;
  font: inherit;
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid rgba(15, 110, 86, 0.25);
  border-color: var(--af-brand);
}

.alert {
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.alert-error {
  background: #fff5f5;
  color: var(--af-err);
  border: 1px solid #fed7d7;
}

.alert-success {
  background: #f0fff4;
  color: var(--af-ok);
  border: 1px solid #c6f6d5;
}

.table-wrap { overflow-x: auto; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

table.data th,
table.data td {
  text-align: left;
  padding: 0.7rem 0.55rem;
  border-bottom: 1px solid var(--af-line);
  vertical-align: top;
}

table.data th {
  color: var(--af-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-info { background: #ebf8ff; color: #2b6cb0; }
.badge-warning { background: #fffaf0; color: var(--af-warn); }
.badge-error { background: #fff5f5; color: var(--af-err); }
.badge-debug { background: #f7fafc; color: #4a5568; }
.badge-ok { background: #f0fff4; color: var(--af-ok); }

.check-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.check-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.75rem;
  border: 1px solid var(--af-line);
  border-radius: 8px;
  background: #fff;
}

.check-item .dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  margin-top: 2px;
}

.check-item.ok .dot { background: var(--af-ok); }
.check-item.fail .dot { background: var(--af-err); }

.check-item .meta {
  color: var(--af-muted);
  font-size: 0.85rem;
  word-break: break-all;
}

/* Auth / guest */
.guest-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 15% 20%, rgba(15, 110, 86, 0.18), transparent 40%),
    radial-gradient(circle at 85% 10%, rgba(196, 92, 38, 0.16), transparent 35%),
    linear-gradient(160deg, #eef3f8, #f7f4ef);
}

.login-card {
  width: min(420px, 100%);
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--af-line);
  border-radius: 16px;
  box-shadow: var(--af-shadow);
  padding: 2rem;
}

.login-card h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
}

.login-card .lead {
  color: var(--af-muted);
  margin: 0 0 1.5rem;
}

.login-card .actions {
  margin-top: 1.25rem;
}

.login-card .hint {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--af-muted);
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    padding: 1rem;
  }

  .nav-list {
    flex-direction: row;
    flex-wrap: wrap;
  }
}