:root {
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-900: #0f172a;
  --emerald: #059669;
  --amber: #d97706;
  --red: #dc2626;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--slate-50);
  color: var(--slate-900);
}

a { color: var(--blue); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 480px; margin: 0 auto; padding: 0 24px; }

.center-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 48px 16px; }

nav.topbar {
  background: #fff;
  border-bottom: 1px solid var(--slate-200);
}
nav.topbar.admin { background: var(--slate-900); color: #fff; border-bottom: none; }
nav.topbar .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}
nav.topbar .brand strong { display: block; }
nav.topbar .brand span { font-size: 12px; color: var(--slate-500); }
nav.topbar.admin .brand span { color: #94a3b8; }
nav.topbar .links { display: flex; align-items: center; gap: 18px; font-size: 14px; flex-wrap: wrap; }
nav.topbar .links a { color: inherit; text-decoration: none; }
nav.topbar .links a:hover { color: var(--blue); }
nav.topbar.admin .links a:hover { color: #93c5fd; }
nav.topbar .links button { background: none; border: none; color: var(--slate-500); cursor: pointer; font-size: 14px; padding: 0; }
nav.topbar.admin .links button { color: #cbd5e1; }
main.page { padding: 32px 0 64px; }

h1 { font-size: 28px; margin: 0 0 16px; }
h2 { font-size: 18px; margin: 0 0 8px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 720px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.card { background: #fff; border: 1px solid var(--slate-200); border-radius: 10px; padding: 16px; }
.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--slate-500); }
.stat-value { font-size: 20px; font-weight: 600; margin-top: 4px; }
.stat-highlight { border-color: #fcd34d; background: #fffbeb; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-blue { background: #eff6ff; color: #1d4ed8; }
.badge-emerald { background: #ecfdf5; color: #047857; }
.badge-amber { background: #fffbeb; color: #b45309; }
.badge-red { background: #fef2f2; color: #b91c1c; }
.badge-slate { background: var(--slate-200); color: var(--slate-600); }

.btn { display: inline-block; border-radius: 8px; padding: 10px 16px; font-size: 14px; font-weight: 600; cursor: pointer; border: 1px solid transparent; text-decoration: none; }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-outline { background: #fff; border-color: var(--slate-300); color: var(--slate-900); }
.btn-outline:hover { background: var(--slate-100); }
.btn-danger-outline { background: #fff; border-color: var(--red); color: var(--red); }
.btn-emerald-outline { background: #fff; border-color: var(--emerald); color: var(--emerald); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-link { background: none; border: none; padding: 0; font: inherit; cursor: pointer; text-decoration: underline; }

label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; }
input[type=text], input[type=email], input[type=password], input[type=tel], input[type=number], select, textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--slate-300);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
}
.field { margin-bottom: 14px; }
.inline-form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--slate-200); border-radius: 10px; overflow: hidden; font-size: 14px; }
thead { background: var(--slate-100); text-align: left; }
th, td { padding: 10px 12px; }
tbody tr { border-top: 1px solid var(--slate-200); }

.alert { border: 1px solid; border-radius: 8px; padding: 12px 14px; margin-bottom: 16px; font-size: 14px; }
.muted { color: var(--slate-500); font-size: 14px; }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-0 { margin-bottom: 0; }
.flex-gap { display: flex; gap: 12px; flex-wrap: wrap; }