:root {
    --ui-font: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --ui-bg: #f4f7fb;
    --ui-surface: #ffffff;
    --ui-surface-soft: #f8fafc;
    --ui-text: #0f172a;
    --ui-muted: #64748b;
    --ui-border: #dbe3ef;
    --ui-primary: #0d9488;
    --ui-primary-hover: #0f766e;
    --ui-radius-sm: 8px;
    --ui-radius-md: 12px;
    --ui-radius-lg: 16px;
    --ui-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --ui-shadow-md: 0 8px 22px rgba(15, 23, 42, 0.08);
    --ui-transition: 0.18s ease;
}

html,
body {
    background: var(--ui-bg);
    color: var(--ui-text);
    font-family: var(--ui-font);
}

.container,
.container-fluid {
    max-width: 100%;
}

.card,
.panel,
.modal-content,
.dropdown-menu {
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-md);
    box-shadow: var(--ui-shadow-sm);
    background: var(--ui-surface);
}

.card:hover,
.panel:hover {
    box-shadow: var(--ui-shadow-md);
}

.table {
    border-collapse: separate;
    border-spacing: 0;
    background: transparent;
    border-radius: var(--ui-radius-md);
    overflow: visible;
}

.table th {
    background: var(--ui-surface-soft);
    color: var(--ui-text);
    font-weight: 600;
    border-top: 0;
}

.table td,
.table th {
    border-color: var(--ui-border);
    vertical-align: middle;
}

.table tbody td,
.table tfoot td {
    background: var(--ui-surface);
}

.table thead tr:first-child th:first-child,
.table thead tr:first-child th:last-child,
.table tbody tr:last-child td:first-child,
.table tbody tr:last-child td:last-child,
.table tfoot tr:last-child td:first-child,
.table tfoot tr:last-child td:last-child {
    border-radius: 0;
}

.table thead tr:first-child th:first-child {
    border-top-left-radius: var(--ui-radius-md) !important;
}

.table thead tr:first-child th:last-child {
    border-top-right-radius: var(--ui-radius-md) !important;
}

.table:not(:has(tfoot)) tbody tr:last-child td:first-child {
    border-bottom-left-radius: var(--ui-radius-md) !important;
}

.table:not(:has(tfoot)) tbody tr:last-child td:last-child {
    border-bottom-right-radius: var(--ui-radius-md) !important;
}

.table tfoot tr:last-child td:first-child {
    border-bottom-left-radius: var(--ui-radius-md) !important;
}

.table tfoot tr:last-child td:last-child {
    border-bottom-right-radius: var(--ui-radius-md) !important;
}

.table-hover tbody tr:hover {
    background: #f0f9ff;
}

.btn {
    border-radius: var(--ui-radius-sm);
    transition: all var(--ui-transition);
    font-weight: 600;
    -webkit-tap-highlight-color: transparent;
}

button,
.btn,
[role="button"] {
    -webkit-tap-highlight-color: transparent;
}

.btn:disabled,
.btn.disabled,
button:disabled {
    cursor: not-allowed !important;
    pointer-events: none !important;
    transform: none !important;
    box-shadow: none !important;
}

.btn:focus,
.btn:active,
.form-control:focus,
.form-select:focus,
.custom-select:focus,
.dropdown-item:focus {
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.22) !important;
    outline: 0;
}

.btn-primary,
.btn-success {
    border-color: var(--ui-primary);
    background: var(--ui-primary);
    color: #ffffff;
}

.btn-primary:hover,
.btn-success:hover {
    border-color: var(--ui-primary-hover);
    background: var(--ui-primary-hover);
    transform: translateY(-1px);
}

.btn-primary:disabled,
.btn-primary.disabled,
.btn-success:disabled,
.btn-success.disabled,
.btn-primary:disabled:hover,
.btn-primary.disabled:hover,
.btn-success:disabled:hover,
.btn-success.disabled:hover {
    border-color: var(--ui-primary) !important;
    background: var(--ui-primary) !important;
    color: #ffffff !important;
    transform: none !important;
}

.btn-primary:focus,
.btn-primary.focus,
.btn-primary:active,
.btn-primary.active,
.show > .btn-primary.dropdown-toggle,
.btn-success:focus,
.btn-success.focus,
.btn-success:active,
.btn-success.active,
.show > .btn-success.dropdown-toggle {
    border-color: var(--ui-primary-hover) !important;
    background: var(--ui-primary-hover) !important;
    color: #ffffff !important;
}

.btn-primary:not(:disabled):not(.disabled):active,
.btn-primary:not(:disabled):not(.disabled).active,
.show > .btn-primary.dropdown-toggle,
.btn-success:not(:disabled):not(.disabled):active,
.btn-success:not(:disabled):not(.disabled).active,
.show > .btn-success.dropdown-toggle {
    border-color: var(--ui-primary-hover) !important;
    background: var(--ui-primary-hover) !important;
    color: #ffffff !important;
}

.btn-outline-primary {
    color: var(--ui-primary);
    border-color: var(--ui-primary);
}

.btn-outline-primary:hover {
    background: var(--ui-primary);
    border-color: var(--ui-primary);
    color: #ffffff;
}

.btn-outline-primary:disabled,
.btn-outline-primary.disabled,
.btn-outline-primary:disabled:hover,
.btn-outline-primary.disabled:hover {
    background: transparent !important;
    border-color: var(--ui-primary) !important;
    color: var(--ui-primary) !important;
    transform: none !important;
}

.btn-outline-primary:focus,
.btn-outline-primary.focus,
.btn-outline-primary:active,
.btn-outline-primary.active,
.show > .btn-outline-primary.dropdown-toggle {
    background: var(--ui-primary) !important;
    border-color: var(--ui-primary) !important;
    color: #ffffff !important;
}

.form-control,
.form-select,
.custom-select,
select,
textarea,
input {
    border-radius: var(--ui-radius-sm);
    border-color: var(--ui-border);
}

.form-control,
.form-select,
.custom-select {
    min-height: 38px;
}

.form-control::placeholder,
textarea::placeholder,
input::placeholder {
    color: #94a3b8;
}

.modal-header,
.modal-footer {
    border-color: var(--ui-border);
}

.modal-title {
    font-weight: 700;
    color: var(--ui-text);
}

.navbar,
.navbar-light,
.navbar-dark {
    border-bottom: 1px solid var(--ui-border);
    box-shadow: var(--ui-shadow-sm);
}

.nav-link {
    color: #334155;
    transition: color var(--ui-transition);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--ui-primary);
}

.badge {
    border-radius: 999px;
    font-weight: 600;
}

.alert {
    border-radius: var(--ui-radius-sm);
    border-color: var(--ui-border);
}

.pagination .page-link {
    border-color: var(--ui-border);
    color: #334155;
    border-radius: 8px;
    margin: 0 2px;
}

.pagination .page-item.active .page-link {
    background: var(--ui-primary);
    border-color: var(--ui-primary);
}

.list-group-item {
    border-color: var(--ui-border);
}

@media (max-width: 768px) {
    .btn {
        min-height: 40px;
    }

    .table td,
    .table th {
        padding: 0.55rem;
    }
}