:root { --primary: #2563eb; --primary-dark: #1d4ed8; --success: #16a34a; --danger: #dc2626; --warning: #f59e0b; --gray-50:#f9fafb; --gray-100:#f3f4f6; --gray-200:#e5e7eb; --gray-300:#d1d5db; --gray-500:#6b7280; --gray-700:#374151; --gray-900:#111827; --radius:8px; }
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif; background:var(--gray-50); color:var(--gray-900); line-height:1.6; }
.container { max-width:600px; margin:0 auto; padding:16px; }
.container-wide { max-width:1100px; margin:0 auto; padding:16px 20px; }

.header { background:var(--primary); color:white; padding:12px 0; margin-bottom:24px; box-shadow:0 2px 8px rgba(0,0,0,0.1); }
.header .container { display:flex; justify-content:space-between; align-items:center; max-width:1100px; }
.header h1 { font-size:18px; }
.header nav a { color:rgba(255,255,255,0.8); text-decoration:none; margin-left:16px; font-size:13px; font-weight:500; }
.header nav a:hover { color:white; }
.header nav a.active { color:white; border-bottom:2px solid white; padding-bottom:2px; }

.card { background:white; border-radius:var(--radius); box-shadow:0 1px 3px rgba(0,0,0,0.06); border:1px solid var(--gray-200); padding:24px; margin-bottom:16px; }
.card h2 { font-size:17px; font-weight:600; margin-bottom:14px; padding-bottom:10px; border-bottom:1px solid var(--gray-100); }
.card h3 { font-size:15px; font-weight:600; color:var(--gray-700); margin-bottom:10px; }

.form-group { margin-bottom:14px; }
.form-group label { display:block; font-size:12px; font-weight:600; color:var(--gray-700); margin-bottom:3px; text-transform:uppercase; }
.form-group input,.form-group select,.form-group textarea { width:100%; padding:10px 12px; border:1px solid var(--gray-300); border-radius:6px; font-size:14px; }
.form-group input:focus,.form-group select:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(37,99,235,0.1); }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:14px; }

.btn { display:inline-block; padding:10px 24px; border:none; border-radius:6px; font-size:14px; font-weight:600; cursor:pointer; text-decoration:none; text-align:center; transition:all 0.2s; }
.btn-primary { background:var(--primary); color:white; }
.btn-primary:hover { background:var(--primary-dark); }
.btn-success { background:var(--success); color:white; }
.btn-danger { background:var(--danger); color:white; }
.btn-sm { padding:5px 12px; font-size:12px; }
.btn-block { display:block; width:100%; }

.badge { display:inline-block; padding:3px 10px; border-radius:20px; font-size:11px; font-weight:600; text-transform:uppercase; }
.badge-pending { background:#fef3c7; color:#92400e; }
.badge-utr_submitted { background:#dbeafe; color:#1e40af; }
.badge-success { background:#dcfce7; color:#166534; }
.badge-failed { background:#fee2e2; color:#991b1b; }
.badge-expired { background:var(--gray-100); color:var(--gray-500); }

.alert { padding:12px 16px; border-radius:6px; margin-bottom:14px; font-size:14px; }
.alert-danger { background:#fee2e2; color:#991b1b; border:1px solid #fecaca; }
.alert-success { background:#dcfce7; color:#166534; border:1px solid #bbf7d0; }
.alert-info { background:#dbeafe; color:#1e40af; border:1px solid #bfdbfe; }
.alert-warning { background:#fef3c7; color:#92400e; border:1px solid #fde68a; }

/* QR Payment Page */
.pay-amount { font-size:36px; font-weight:700; color:var(--primary); text-align:center; margin:12px 0 4px; }
.pay-amount-note { text-align:center; font-size:12px; color:var(--gray-500); margin-bottom:16px; }
.qr-box { text-align:center; background:white; padding:20px; border-radius:10px; border:2px dashed var(--gray-200); margin:16px 0; }
.qr-box canvas { max-width:240px !important; max-height:240px !important; }
.pay-apps { text-align:center; margin:8px 0; font-size:12px; color:var(--gray-500); }
.upi-btns { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:16px 0; }
.upi-btn { display:flex; align-items:center; gap:10px; padding:12px 14px; border:2px solid var(--gray-200); border-radius:8px; text-decoration:none; color:var(--gray-900); font-weight:600; font-size:13px; background:white; cursor:pointer; transition:all .2s; }
.upi-btn:hover { border-color:var(--primary); }
.upi-btn:active { transform:scale(.98); }
.upi-icon { width:36px; height:36px; border-radius:8px; display:flex; align-items:center; justify-content:center; font-size:16px; font-weight:700; color:white; flex-shrink:0; }
.timer { text-align:center; font-size:14px; color:var(--danger); font-weight:600; margin:12px 0; }

/* UTR Form */
.utr-section { background:#f0f9ff; border:1px solid #bae6fd; border-radius:8px; padding:20px; margin:16px 0; }
.utr-section h3 { color:#0c4a6e; margin-bottom:8px; }
.utr-steps { font-size:13px; color:var(--gray-700); margin:10px 0 16px; }
.utr-steps ol { margin-left:18px; }
.utr-steps li { margin-bottom:4px; }

/* Admin */
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:18px; }
.stat-card { background:white; border-radius:8px; padding:16px; border:1px solid var(--gray-200); border-left:4px solid var(--primary); }
.stat-label { font-size:11px; font-weight:600; text-transform:uppercase; color:var(--gray-500); }
.stat-value { font-size:24px; font-weight:700; color:var(--gray-900); }
.stat-sub { font-size:11px; color:var(--gray-500); margin-top:2px; }

table { width:100%; border-collapse:collapse; font-size:13px; }
th,td { padding:8px 10px; text-align:left; border-bottom:1px solid var(--gray-100); }
th { background:var(--gray-50); font-weight:600; color:var(--gray-700); font-size:11px; text-transform:uppercase; }
.mono { font-family:'SF Mono','Fira Code',monospace; font-size:11px; }
.table-wrap { overflow-x:auto; }
.amount-col { font-weight:700; color:#1e40af; white-space:nowrap; }

.pagination { display:flex; justify-content:center; align-items:center; gap:12px; padding:12px; }
.mobile-only { display:none; }
@media(max-width:640px) {
    .form-row { grid-template-columns:1fr; }
    .stats-grid { grid-template-columns:1fr 1fr; }
    .upi-btns { grid-template-columns:1fr; }
    .desktop-only { display:none; }
    .mobile-only { display:block; }
}