:root {
    --bg: #f3f6fb;
    --surface: #ffffff;
    --surface-soft: #f8faff;
    --text: #1f2937;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-600: #1d4ed8;
    --danger: #ef4444;
    --success: #16a34a;
    --border: #e5e7eb;
    --shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: linear-gradient(160deg, #eef3ff, #f8f9ff 30%, #f4f7ff);
    color: var(--text);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar h1 {
    margin: 0;
    font-size: 1.35rem;
}

.muted {
    color: var(--muted);
}

.top-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.top-links a {
    text-decoration: none;
    color: var(--text);
    font-size: 0.92rem;
    padding: 8px 10px;
    border-radius: 10px;
}

.top-links a.active,
.top-links a:hover {
    background: var(--surface-soft);
    color: var(--primary);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}

.stat-card {
    border-radius: 14px;
    padding: 18px;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.stat-card h3 {
    margin: 0;
    font-size: 0.95rem;
    color: var(--muted);
}

.stat-value {
    margin: 8px 0 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.btn {
    border: 1px solid var(--border);
    background: #fff;
    color: var(--text);
    border-radius: 10px;
    padding: 9px 14px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.94rem;
    transition: 0.2s;
}

.btn:hover {
    border-color: #cbd5e1;
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-600);
}

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

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.single-col {
    grid-template-columns: 1fr;
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.9rem;
}

input,
select {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 11px;
    font-size: 0.95rem;
    background: #fff;
}

input:focus,
select:focus {
    outline: none;
    border-color: #93c5fd;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.full {
    grid-column: 1 / -1;
}

.row {
    display: flex;
}

.gap {
    gap: 8px;
}

.align-end {
    align-items: end;
}

.checkbox-row {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    margin-top: 26px;
}

.radio-row {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.field-title {
    font-size: 0.9rem;
    margin-bottom: 4px;
    color: #374151;
}

.radio-inline-group {
    display: flex;
    align-items: center;
    gap: 16px;
}

.table-wrap {
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
}

.mt12 {
    margin-top: 12px;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
    background: #fff;
}

th,
td {
    border-bottom: 1px solid #eff2f7;
    padding: 10px;
    text-align: left;
    font-size: 0.9rem;
}

th {
    background: var(--surface-soft);
    position: sticky;
    top: 0;
    z-index: 1;
}

tfoot th,
tfoot td {
    background: #f1f5f9;
    font-weight: 700;
}

.right {
    text-align: right;
}

.tag {
    border-radius: 999px;
    background: #dbeafe;
    color: #1e40af;
    font-size: 0.78rem;
    padding: 2px 9px;
    display: inline-block;
}

.status-pending {
    color: #b45309;
    font-weight: 600;
}

.status-returned {
    color: var(--success);
    font-weight: 600;
}

.center {
    text-align: center;
}

.alert {
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.alert.error {
    background: #fef2f2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.alert.success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}

.tab {
    border: 1px solid #dbe3f4;
    background: #fff;
    color: #334155;
    border-radius: 999px;
    padding: 8px 14px;
    font-size: 0.82rem;
    letter-spacing: 0.4px;
    cursor: pointer;
}

.tab.active {
    background: #1d4ed8;
    border-color: #1d4ed8;
    color: #fff;
}

.divider {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 18px 0;
}

.report-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.report-box {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    background: #fff;
}

.report-value {
    margin-top: 8px;
    color: #0f172a;
    font-size: 1.2rem;
    font-weight: 700;
}

.btn-xs {
    padding: 6px 9px;
    font-size: 0.8rem;
}

.subgrid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.hidden {
    display: none !important;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    display: grid;
    place-items: center;
    z-index: 200;
    padding: 16px;
}

.modal-card {
    width: 100%;
    max-width: 460px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    box-shadow: var(--shadow);
}

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 22px;
    box-shadow: var(--shadow);
}

.auth-card h1 {
    margin: 0;
    font-size: 1.35rem;
}

.login-help {
    margin-top: 14px;
    color: #6b7280;
}

.bank-form-inline {
    grid-template-columns: 2fr 1fr auto;
}

@media (max-width: 900px) {
    .filters-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .subgrid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .report-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .topbar {
        position: static;
        flex-direction: column;
        align-items: flex-start;
    }
}