:root {
    --btn-radius: 0.65rem;
    --btn-font: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --btn-shadow: 0 12px 24px -12px rgba(37, 99, 235, 0.6);
    --btn-shadow-soft: 0 12px 24px -14px rgba(15, 23, 42, 0.25);
    --surface-radius: 1.25rem;
    --surface-border: 1px solid rgba(148, 163, 184, 0.18);
    --surface-shadow: 0 20px 40px -24px rgba(15, 23, 42, 0.25);
    --table-header-bg: #f8fafc;
    --table-row-hover: #f1f5f9;
    --table-border: rgba(148, 163, 184, 0.3);
    --accent-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --accent-primary-solid: #2563eb;
    --accent-primary-dark: #1d4ed8;
    --accent-secondary: rgba(37, 99, 235, 0.12);
    --accent-danger: #dc2626;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    border-radius: var(--btn-radius);
    font-family: var(--btn-font);
    font-weight: 600;
    font-size: 0.925rem;
    line-height: 1.2;
    padding: 0.6rem 1.25rem;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    transition: all 0.18s ease;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--btn-shadow-soft);
    background-color: white;
    color: #0f172a;
}

.btn-sm {
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
}

.btn i {
    font-size: 0.9em;
}

.btn-success {
    background-color: #22c55e;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: var(--btn-shadow);
}
.btn-success:hover {
    background-color: #16a34a;
    transform: translateY(-1px);
    box-shadow: 0 18px 35px -18px rgba(34, 197, 94, 0.8);
}
.btn-success:active {
    transform: translateY(0);
    box-shadow: var(--btn-shadow);
}
.btn-warning {
    background-color: #f59e0b;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: var(--btn-shadow);
}
.btn-warning:hover {
    background-color: #d97706;
    transform: translateY(-1px);
    box-shadow: 0 18px 35px -18px rgba(245, 158, 11, 0.8);
}

.btn-danger {
    background-color: #dc2626;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: var(--btn-shadow);
}

.btn-danger:hover {
    background-color: #b91c1c;
    transform: translateY(-1px);
    box-shadow: 0 18px 35px -18px rgba(220, 38, 38, 0.85);
}

.btn-danger:active {
    transform: translateY(0);
    box-shadow: var(--btn-shadow);
}

.btn-primary {
    background-image: var(--accent-primary);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: var(--btn-shadow);
}

.btn-primary:hover {
    background-image: linear-gradient(135deg, var(--accent-primary-dark) 0%, #1e40af 100%);
    transform: translateY(-1px);
    box-shadow: 0 18px 35px -18px rgba(37, 99, 235, 0.8);
}

.btn-secondary {
    background: rgba(15, 23, 42, 0.06);
    color: #1e293b;
    border-color: rgba(148, 163, 184, 0.35);
}

.btn-secondary:hover {
    background: rgba(15, 23, 42, 0.12);
    border-color: rgba(37, 99, 235, 0.45);
    color: #1d4ed8;
}

.btn-outline {
    background: transparent;
    border-color: rgba(37, 99, 235, 0.4);
    color: #2563eb;
}

.btn-outline:hover {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.75);
}

.btn-muted {
    background: rgba(148, 163, 184, 0.18);
    color: #1f2937;
    border: none;
}

.btn-muted:hover {
    background: rgba(148, 163, 184, 0.26);
}

.btn-filter {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    border-radius: 999px;
    border: 1px solid transparent;
    background: rgba(148, 163, 184, 0.12);
    color: #475569;
    box-shadow: none;
}

.btn-filter:hover {
    background: rgba(37, 99, 235, 0.1);
    color: #1d4ed8;
}

.btn-filter.is-active {
    background: rgba(37, 99, 235, 0.16);
    color: #1d4ed8;
    border-color: rgba(37, 99, 235, 0.35);
}

.table-card {
    background: #fff;
    border-radius: var(--surface-radius);
    border: var(--surface-border);
    box-shadow: var(--surface-shadow);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: #fff;
}

.data-table thead th {
    background: var(--table-header-bg);
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    font-weight: 700;
    color: #475569;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--table-border);
}

.data-table tbody td {
    padding: 1rem;
    font-size: 0.9rem;
    color: #334155;
    border-bottom: 1px solid rgba(226, 232, 240, 0.7);
    background-color: #fff;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr:hover {
    background-color: var(--table-row-hover);
}

.actions-menu {
    border-radius: 0.75rem;
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 20px 50px -28px rgba(15, 23, 42, 0.45);
}

.actions-menu .actions-link {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.95rem;
    font-size: 0.875rem;
    color: #334155;
    transition: background 0.16s ease, color 0.16s ease;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
}

.actions-menu .actions-link i {
    font-size: 0.85rem;
    width: 1rem;
    text-align: center;
}

.actions-menu .actions-link span {
    flex: 1;
}

.actions-menu .actions-link:hover {
    background: rgba(37, 99, 235, 0.08);
    color: #1d4ed8;
}

.actions-menu .actions-link.actions-link--success {
    color: #047857;
}

.actions-menu .actions-link.actions-link--success:hover {
    background: rgba(16, 185, 129, 0.12);
    color: #047857;
}

.actions-menu .actions-link.actions-link--info {
    color: #1d4ed8;
}

.actions-menu .actions-link.actions-link--info:hover {
    color: #1d4ed8;
}

.actions-menu .actions-link.actions-link--warning {
    color: #b45309;
}

.actions-menu .actions-link.actions-link--warning:hover {
    background: rgba(251, 191, 36, 0.15);
    color: #92400e;
}

.actions-menu .actions-link.actions-link--primary {
    color: #4338ca;
}

.actions-menu .actions-link.actions-link--primary:hover {
    background: rgba(129, 140, 248, 0.18);
    color: #3730a3;
}

.actions-menu .actions-link.actions-link--danger {
    color: #b91c1c;
}

.actions-menu .actions-link.actions-link--danger:hover {
    background: rgba(248, 113, 113, 0.14);
    color: #991b1b;
}

.actions-wrapper {
    position: relative;
    display: inline-block;
}

.actions-wrapper .actions-menu {
    min-width: 11rem;
    padding: 0.35rem 0;
    z-index: 9999; /* ensure dropdown overlays nearby controls */
}

/* Global DataTable spacing inside card surfaces for consistent edge gutters. */
.table-card .dataTables_wrapper {
    padding: 0.75rem;
}

.table-card .dataTables_wrapper .dataTables_scroll,
.table-card .dataTables_wrapper table.dataTable,
.table-card .dataTables_wrapper table.data-table {
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 0.75rem;
    overflow: hidden;
    background: #fff;
}

.dataTables_wrapper .dataTables_filter label {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: #64748b;
}

.dataTables_wrapper .dataTables_filter input {
    margin-left: 0.75rem;
    padding: 0.45rem 0.95rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(148, 163, 184, 0.45);
    background: #fff;
    transition: border 0.2s ease, box-shadow 0.2s ease;
}

.dataTables_wrapper .dataTables_filter input:focus {
    border-color: rgba(37, 99, 235, 0.65);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
    outline: none;
}

.dataTables_wrapper .dataTables_length label {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: #64748b;
}

.dataTables_wrapper .dataTables_length select {
    margin: 0 0.4rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(148, 163, 184, 0.45);
    padding: 0.35rem 0.75rem;
    background: #fff;
}

.dataTables_wrapper .dataTables_info {
    font-size: 0.8rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: 0.65rem;
    border: 1px solid transparent;
    margin: 0 0.15rem;
    padding: 0.35rem 0.8rem;
    color: #475569 !important;
    background: transparent;
    transition: all 0.15s ease;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: rgba(37, 99, 235, 0.12);
    color: #1d4ed8 !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current,
.dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    background: rgba(37, 99, 235, 0.15);
    color: #1d4ed8 !important;
    border-color: rgba(37, 99, 235, 0.2);
}

.dataTables_wrapper .dt-buttons {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1rem;
}

.dataTables_wrapper .dt-buttons .dt-button {
    background: rgba(15, 23, 42, 0.04);
    border: 1px solid rgba(148, 163, 184, 0.3);
    color: #1f2937;
    border-radius: var(--btn-radius);
    padding: 0.45rem 0.95rem;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.16s ease;
}

.dataTables_wrapper .dt-buttons .dt-button:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.4);
    color: #1d4ed8;
}

.dataTables_wrapper .dt-buttons .dt-button span {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.dataTables_wrapper .dt-buttons .dt-button:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.22);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.badge i {
    font-size: 0.8rem;
}

.badge--success {
    background: rgba(34, 197, 94, 0.16);
    color: #047857;
}

.badge--warning {
    background: rgba(250, 204, 21, 0.18);
    color: #b45309;
}

.badge--danger {
    background: rgba(248, 113, 113, 0.2);
    color: #b91c1c;
}

.badge--info {
    background: rgba(191, 219, 254, 0.35);
    color: #1d4ed8;
}

.row-has-due {
    background: linear-gradient(90deg, rgba(248, 113, 113, 0.12) 0%, rgba(248, 250, 252, 0) 45%);
}
.dataTables_filter {
        flex: 1;
        max-width: 400px;
    }
    .dataTables_filter input {
        width: 100% !important;
        max-width: 400px;
        padding: 0.5rem 0.75rem;
        border-radius: 0.5rem;
    }
    .dt-buttons {
        display: flex;
        gap: 0.5rem;
    }

@media (max-width: 768px) {
    .dataTables_wrapper .dt-buttons {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .dataTables_wrapper .dataTables_filter {
        margin-top: 0.75rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}