:root {
    --corp-bg: #f3f6fb;
    --corp-bg-alt: #ebf1f8;
    --corp-surface: #ffffff;
    --corp-surface-soft: #f7f9fc;
    --corp-text: #13243b;
    --corp-muted: #5d6f86;
    --corp-line: #d8e2ee;
    --corp-brand: #1f8f9a;
    --corp-brand-strong: #176f78;
    --corp-shadow-sm: 0 10px 24px rgba(16, 33, 52, 0.06);
    --corp-shadow-md: 0 20px 40px rgba(16, 33, 52, 0.1);
}

body {
    margin: 0;
    color: var(--corp-text);
    background:
        radial-gradient(circle at 8% -8%, rgba(31, 143, 154, 0.16), transparent 35%),
        radial-gradient(circle at 95% -18%, rgba(31, 111, 168, 0.14), transparent 42%),
        linear-gradient(165deg, var(--corp-bg), var(--corp-bg-alt));
}

main.py-4 {
    min-height: calc(100vh - 230px);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--corp-text);
    font-weight: 800;
    letter-spacing: 0.1px;
}

p,
li,
small,
label {
    color: var(--corp-muted);
}

a {
    color: var(--corp-brand-strong);
}

a:hover {
    color: #0f5c63;
}

.container-fluid,
.container {
    position: relative;
    z-index: 1;
}

.card {
    border: 1px solid var(--corp-line);
    border-radius: 16px;
    background: var(--corp-surface);
    box-shadow: var(--corp-shadow-sm);
}

.card-header {
    background: linear-gradient(145deg, #f7fbff, #f0f5fb);
    border-bottom: 1px solid var(--corp-line);
    font-weight: 700;
}

.table {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--corp-line);
    background: var(--corp-surface);
}

.table thead th {
    color: #133355;
    font-weight: 700;
    border-bottom: 1px solid var(--corp-line);
    background: #f5f9ff;
}

.table tbody td {
    color: #344962;
    border-color: #e1e9f3;
}

.table tbody tr:hover td {
    background: #f7fbff;
}

.form-label {
    color: #203b5d;
    font-weight: 700;
}

.form-control,
.form-select,
textarea.form-control {
    border-radius: 11px;
    border: 1px solid #cfdcec;
    background: #fbfdff;
    min-height: 42px;
}

.form-control:focus,
.form-select:focus,
textarea.form-control:focus {
    border-color: #6ea5e2;
    box-shadow: 0 0 0 3px rgba(75, 124, 191, 0.14);
    background: #ffffff;
}

.alert {
    border-radius: 12px;
    border-width: 1px;
}

.btn {
    border-radius: 11px;
    font-weight: 700;
}

.btn-primary {
    background: linear-gradient(135deg, #2563a8, #1a4f8e);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #20558f, #17447a);
}

.btn-secondary {
    border: none;
    background: linear-gradient(135deg, #67758a, #525f73);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #5b687b, #465264);
}

.btn-warning {
    border: none;
    background: linear-gradient(135deg, #d89a2d, #c78319);
    color: #1c170f;
}

.btn-warning:hover {
    color: #1c170f;
    background: linear-gradient(135deg, #ca8f2a, #b77714);
}

.btn-success {
    border: none;
    background: linear-gradient(135deg, #238269, #1b6b56);
}

.btn-success:hover {
    background: linear-gradient(135deg, #1f755f, #165746);
}

.ad-box {
    background: linear-gradient(160deg, #ffffff, #f7fbff);
    border: 1px solid var(--corp-line);
    border-radius: 14px;
    box-shadow: var(--corp-shadow-sm);
}

.pagination {
    gap: 0.3rem;
}

.pagination .page-link {
    border-radius: 10px;
    border: 1px solid #d2deec;
    color: #1f5a87;
}

.pagination .page-item.active .page-link {
    border-color: #1f8f9a;
    background: #1f8f9a;
    color: #ffffff;
}