:root {
  --bg: #0d0d0d;
  --surface: #161616;
  --surface2: #1f1f1f;
  --border: #2a2a2a;
  --text: #f0f0f0;
  --text-muted: #7a7a7a;
  --accent: #f5a623;
  --accent-dark: #d48c1a;
  --green: #22c55e;
  --red: #ef4444;
  --orange: #f97316;
  --blue: #3b82f6;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 32px rgba(0,0,0,0.6);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: 'Inter', system-ui, sans-serif; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }

/* ─── Layout ─── */
.centered { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.page-wrap { max-width: 960px; margin: 0 auto; padding: 1.5rem; }

/* ─── Typography ─── */
h1 { font-size: 1.75rem; font-weight: 800; }
h2 { font-size: 1.25rem; font-weight: 700; }
h3 { font-size: 1rem; font-weight: 600; }
.text-muted { color: var(--text-muted); font-size: 0.875rem; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.625rem 1.25rem; border-radius: var(--radius-sm);
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  border: none; transition: all 0.15s; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--surface2); }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ─── Forms ─── */
.form-group { display: flex; flex-direction: column; gap: 0.375rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.85rem; font-weight: 500; color: var(--text-muted); }
input, select, textarea {
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius-sm);
  padding: 0.625rem 0.875rem; font-size: 0.9rem; width: 100%;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
select option { background: var(--surface2); }

/* ─── Card / Panel ─── */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }

/* ─── Status Badges ─── */
.badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.25rem 0.75rem; border-radius: 999px;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.03em;
}
.badge-active  { background: rgba(34,197,94,0.12);  color: var(--green);  border: 1px solid rgba(34,197,94,0.4); }
.badge-expired { background: rgba(239,68,68,0.12);  color: var(--red);    border: 1px solid rgba(239,68,68,0.4); }
.badge-warning { background: rgba(249,115,22,0.12); color: var(--orange); border: 1px solid rgba(249,115,22,0.4); }
.badge-type    { background: rgba(245,166,35,0.12); color: var(--accent); border: 1px solid rgba(245,166,35,0.3); }

/* ─── Table ─── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th {
  text-align: left; padding: 0.75rem 1rem; font-size: 0.75rem; font-weight: 600;
  color: var(--text-muted); border-bottom: 1px solid var(--border);
  text-transform: uppercase; letter-spacing: 0.05em; background: var(--surface);
}
td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface2); }
.actions-cell { display: flex; gap: 0.5rem; }

/* ─── Modal ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.75);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 1rem;
}
.modal {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 2rem; width: 100%;
  max-width: 520px; max-height: 90vh; overflow-y: auto;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 1.5rem; cursor: pointer; line-height: 1; padding: 0.25rem; }
.modal-close:hover { color: var(--text); }

/* ─── Progress bar ─── */
.progress-wrap { background: var(--border); border-radius: 999px; height: 6px; overflow: hidden; margin-top: 0.5rem; }
.progress-bar  { height: 100%; border-radius: 999px; background: var(--accent); transition: width 0.4s; }

/* ─── Toast ─── */
.toast {
  position: fixed; bottom: 1.5rem; right: 1.5rem;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.875rem 1.25rem;
  font-size: 0.9rem; z-index: 9999; box-shadow: var(--shadow);
  animation: slideIn 0.2s ease; min-width: 200px;
}
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error   { border-color: var(--red);   color: var(--red); }
@keyframes slideIn { from { transform: translateY(8px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ─── Loader ─── */
.loader { display: inline-block; width: 28px; height: 28px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Filter tabs ─── */
.filter-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.filter-tab { padding: 0.4rem 1rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; cursor: pointer; border: 1px solid var(--border); background: transparent; color: var(--text-muted); transition: all 0.15s; }
.filter-tab:hover  { color: var(--text); border-color: var(--text-muted); }
.filter-tab.active { background: var(--accent); color: #000; border-color: var(--accent); }

/* ─── Admin header ─── */
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.admin-toolbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-bottom: 1rem; }

/* ─── Member Card (card.html) ─── */
.member-card-page { min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: 1rem; background: var(--bg); }
.member-card {
  background: linear-gradient(145deg, #1a1a1a, #111);
  border: 1px solid var(--border); border-radius: 20px;
  padding: 2rem; width: 100%; max-width: 400px;
  box-shadow: 0 8px 48px rgba(0,0,0,0.7);
  position: relative; overflow: hidden;
}
.member-card::before {
  content: ''; position: absolute; top: -60px; right: -60px;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(245,166,35,0.08), transparent 70%);
}
.gym-logo { font-size: 0.85rem; font-weight: 800; letter-spacing: 0.12em; color: var(--accent); text-transform: uppercase; margin-bottom: 1.5rem; }
.member-name { font-size: 1.75rem; font-weight: 800; margin-bottom: 0.5rem; line-height: 1.1; }
.card-status-row { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 1.5rem; flex-wrap: wrap; }
.card-dates { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.25rem; line-height: 1.8; }
.card-dates span { color: var(--text); font-weight: 600; }
.card-progress-label { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.3rem; }
.qr-section { display: flex; flex-direction: column; align-items: center; margin-top: 1.75rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.qr-section p { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.75rem; }
#qr-canvas { border-radius: 8px; }

/* ─── Scan page ─── */
.scan-page { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: flex-start; padding: 1.5rem; }
.scan-header { text-align: center; margin-bottom: 1.5rem; }
.scan-viewport { width: 100%; max-width: 420px; border-radius: var(--radius); overflow: hidden; position: relative; border: 2px solid var(--border); }
.scan-result {
  width: 100%; max-width: 420px; border-radius: var(--radius);
  padding: 1.5rem; text-align: center; margin-top: 1rem;
  display: none;
}
.scan-result.active   { display: block; background: rgba(34,197,94,0.1);  border: 2px solid var(--green); }
.scan-result.expired  { display: block; background: rgba(239,68,68,0.1);  border: 2px solid var(--red); }
.scan-result.warning  { display: block; background: rgba(249,115,22,0.1); border: 2px solid var(--orange); }
.scan-result.error    { display: block; background: rgba(239,68,68,0.1);  border: 2px solid var(--red); }
.scan-icon { font-size: 3.5rem; margin-bottom: 0.75rem; }
.scan-name { font-size: 1.4rem; font-weight: 800; margin-bottom: 0.25rem; }
.scan-detail { color: var(--text-muted); font-size: 0.9rem; }

/* ─── Login page ─── */
.login-wrap { width: 100%; max-width: 380px; }
.login-logo { text-align: center; margin-bottom: 2rem; }
.login-logo h1 { font-size: 1.5rem; font-weight: 900; letter-spacing: 0.08em; }
.login-logo p { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.25rem; }

/* ─── Utilities ─── */
.hidden { display: none !important; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.text-center { text-align: center; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.w-full { width: 100%; }

@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
  .admin-header { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}

@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }