:root {
  --gp-brand: #1d4ed8;
  --gp-brand-dark: #1e3a8a;
  --gp-brand-light: #dbeafe;
  --gp-accent: #0ea5e9;
  --gp-success: #16a34a;
  --gp-warning: #ea580c;
  --gp-danger: #dc2626;
  --gp-sidebar: #0f172a;
  --gp-sidebar-border: #1e293b;
  --gp-text: #0f172a;
  --gp-muted: #64748b;
  --gp-surface: #ffffff;
  --gp-border: #e2e8f0;
  --gp-bg: #f1f5f9;
  --gp-radius: 14px;
  --gp-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
  --gp-font: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--gp-font);
  color: var(--gp-text);
  background: var(--gp-bg);
}

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

.hidden { display: none !important; }

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--gp-brand), var(--gp-accent));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 8px 20px rgba(29, 78, 216, 0.35);
}

.brand-text strong {
  display: block;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.brand-text span {
  display: block;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: #94a3b8;
  text-transform: uppercase;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--gp-brand), #2563eb);
  color: #fff;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.25);
}

.btn-secondary {
  background: #e2e8f0;
  color: #1e293b;
}

.btn-danger {
  background: var(--gp-danger);
  color: #fff;
}

.btn-success {
  background: var(--gp-success);
  color: #fff;
}

.btn-outline {
  background: #fff;
  border: 1px solid var(--gp-border);
  color: var(--gp-text);
}

.field {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--gp-border);
  border-radius: 10px;
  font: inherit;
  background: #fff;
}

.field:focus {
  outline: none;
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.panel {
  background: var(--gp-surface);
  border: 1px solid var(--gp-border);
  border-radius: var(--gp-radius);
  padding: 18px;
  box-shadow: var(--gp-shadow);
}

.panel h2, .panel h3 {
  margin: 0 0 8px;
}

.sub {
  color: var(--gp-muted);
  margin: 0 0 14px;
  font-size: 14px;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  text-transform: lowercase;
}

.badge.paid, .badge.completed {
  background: #dcfce7;
  color: #166534;
}

.badge.pending {
  background: #fef9c3;
  color: #854d0e;
}

.badge.expired {
  background: #fee2e2;
  color: #991b1b;
}

.badge.live {
  background: #dbeafe;
  color: #1d4ed8;
}

.skeleton {
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.2s ease-in-out infinite;
}

.skeleton-card {
  min-height: 72px;
  display: grid;
  place-items: center;
}

.skeleton-row td {
  padding: 12px 10px;
}

@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.btn-sm {
  padding: 6px 10px;
  font-size: 12px;
}

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

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

th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--gp-border);
  font-size: 14px;
}

th {
  color: var(--gp-muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.link-box {
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  word-break: break-all;
}

.error {
  color: var(--gp-danger);
  font-size: 14px;
  min-height: 20px;
  margin-top: 8px;
}

.success-msg {
  color: var(--gp-success);
  font-size: 14px;
  min-height: 20px;
  margin-top: 8px;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.18), transparent 40%),
    radial-gradient(circle at bottom left, rgba(29, 78, 216, 0.22), transparent 45%),
    #0f172a;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
}

.login-card .brand-logo { margin-bottom: 18px; }

/* Admin login — single card on dark bg */
.login-shell:not(:has(.login-brand-panel)) {
  grid-template-columns: 1fr;
  background:
    radial-gradient(circle at top right, rgba(14, 165, 233, 0.18), transparent 40%),
    radial-gradient(circle at bottom left, rgba(29, 78, 216, 0.22), transparent 45%),
    #0f172a;
}

.login-shell:not(:has(.login-brand-panel)) .login-card .brand-text strong {
  color: #0f172a;
}

.login-shell:not(:has(.login-brand-panel)) .login-card .brand-text span {
  color: #64748b;
}

.login-card h1 { margin: 0 0 6px; font-size: 24px; color: #0f172a; }
.login-card .field { margin-bottom: 10px; }
.login-card .btn { width: 100%; margin-top: 6px; }

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

.stat-card {
  background: #fff;
  border: 1px solid var(--gp-border);
  border-radius: var(--gp-radius);
  padding: 16px;
}

.stat-label {
  color: var(--gp-muted);
  font-size: 12px;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 26px;
  font-weight: 800;
}