:root {
  --bg: #f1f5f9;
  --card: #fff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --accent: #2563eb;
  --danger: #dc2626;
  --ok: #059669;
}

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

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

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.login-card, .panel, .stat-card, table {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.login-card {
  width: min(420px, 100%);
  padding: 24px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.login-card h1 { font-size: 1.4rem; margin-bottom: 6px; }
.login-card p { color: var(--muted); margin-bottom: 16px; font-size: 0.92rem; }

label { display: block; font-size: 0.85rem; font-weight: 700; margin: 10px 0 6px; }
input, textarea, select, button {
  font: inherit;
}

input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 16px;
}

textarea { min-height: 160px; resize: vertical; }

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  min-height: 42px;
}

.btn-secondary { background: #334155; }
.btn-danger { background: var(--danger); }
.btn-block { width: 100%; margin-top: 14px; }

.msg {
  margin: 10px 0;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
}
.msg.error { background: #fef2f2; color: var(--danger); }
.msg.ok { background: #ecfdf5; color: var(--ok); }

.hint {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.45;
}

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

.admin-nav {
  background: #0f172a;
  color: #fff;
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.admin-nav .brand {
  font-weight: 800;
  width: 100%;
  margin-bottom: 4px;
}

.admin-nav a {
  color: #cbd5e1;
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.9rem;
}

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

.nav-user {
  width: 100%;
  font-size: 0.82rem;
  color: #94a3b8;
  margin-top: 4px;
}

.admin-main {
  padding: 16px;
}

.admin-main h1 {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  margin-bottom: 14px;
}

.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stat-card {
  padding: 14px;
}

.stat-card .label { color: var(--muted); font-size: 0.82rem; }
.stat-card .value { font-size: 1.6rem; font-weight: 800; margin-top: 4px; }

.panel {
  padding: 16px;
  margin-bottom: 16px;
}

.panel h2 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
}

th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 0.9rem;
  vertical-align: top;
}

th { background: #f8fafc; font-size: 0.8rem; color: var(--muted); }

.bar {
  height: 8px;
  background: #e2e8f0;
  border-radius: 99px;
  overflow: hidden;
  min-width: 80px;
}

.bar > span {
  display: block;
  height: 100%;
  background: var(--accent);
}

.form-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.perm-table-wrap {
  overflow-x: auto;
  margin-top: 8px;
}

.perm-table th,
.perm-table td {
  font-size: 0.85rem;
}

.perm-check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.perm-check input {
  width: auto;
}

code {
  background: #f1f5f9;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

@media (min-width: 900px) {
  .admin-shell {
    grid-template-columns: 240px 1fr;
  }
  .admin-nav {
    flex-direction: column;
    align-items: stretch;
    position: sticky;
    top: 0;
    height: 100vh;
  }
  .admin-nav .brand { margin-bottom: 12px; }
  .nav-user { margin-top: auto; }
  .admin-main { padding: 24px; }
}