.form {
    padding: 1em;
    border: 1px solid #f1f1f1;
    box-shadow: 0 4px 6px 0 rgba(22, 22, 26, 0.18);
}

@media only screen and (min-width: 768px) {
    .form {
        width: 50%;
    }
}

.form-select, .form-control {
    border: none;
    border-bottom: 1px solid #000000;
    border-radius: 0;
}

    .form-select:focus, .form-control:focus {
        box-shadow: none;
        border-bottom-color: #2196f3;
    }

        .form-select:focus + label, .form-control:focus + label {
            color: #2196f3;
        }

input[type="submit"] {
    color: #2196f3;
    border-color: #2196f3;
}

    input[type="submit"]:hover,
    input[type="submit"]:focus {
        color: #ffffff;
        background-color: #2196f3;
        outline: none;
        box-shadow: 0 4px 6px 0 rgba(22, 22, 26, 0.18);
    }

/* Material-style tabs */
.material-tabs {
    border-bottom: none;
    gap: 24px;
}

    .material-tabs .nav-link {
        border: none;
        background: transparent;
        color: #6c757d;
        font-weight: 500;
        padding: 12px 4px;
        position: relative;
    }

        .material-tabs .nav-link:hover {
            color: #0d6efd;
        }

        .material-tabs .nav-link.active {
            color: #0d6efd;
            background: transparent;
        }

            /* Animated underline (Material effect) */
            .material-tabs .nav-link.active::after {
                content: "";
                position: absolute;
                left: 0;
                bottom: -6px;
                width: 100%;
                height: 3px;
                background-color: #0d6efd;
                border-radius: 3px;
            }

/* --------------------------------------------------------------------------
   Workbook material forms — match Register/Login (auth.css + form-floating).
   Scoped under .workbook-material-form; must beat body.theme-2026 field rules.
   -------------------------------------------------------------------------- */

body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-control,
body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-select,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-control,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-select,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-control,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-select {
    width: 100%;
    height: auto;
    min-height: 4.5rem;
    padding-top: 2rem;
    padding-bottom: 0.625rem;
    padding-left: 0;
    padding-right: 0;
    border: none;
    border-bottom: 2px solid #d9dee5;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    font-size: 1rem;
    line-height: 1.4;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-select,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-select,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-select {
    padding-top: 2.125rem;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-control:focus,
body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-select:focus,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-control:focus,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-select:focus,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-control:focus,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-select:focus {
    border-bottom-color: #1977cc;
    box-shadow: none;
    outline: none;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > label,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > label,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > label {
    padding-left: 0;
    padding-right: 0;
    padding-top: 0.875rem;
    line-height: 1.2;
    color: #7a8794;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-control:focus ~ label,
body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-control:not(:placeholder-shown) ~ label,
body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-select ~ label,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-control:focus ~ label,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-control:not(:placeholder-shown) ~ label,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-select ~ label,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-control:focus ~ label,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-control:not(:placeholder-shown) ~ label,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-select ~ label {
    transform: scale(0.88) translateY(-0.65rem) translateX(0);
    color: #7a8794;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-control:focus ~ label,
body.theme-2026 #WorkbookApp .workbook-material-form .form-floating > .form-select:focus ~ label,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-control:focus ~ label,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-floating > .form-select:focus ~ label,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-control:focus ~ label,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-floating > .form-select:focus ~ label {
    color: #1977cc;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-control:read-only,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-control:read-only,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-control:read-only {
    background-color: transparent;
    color: #7a8794;
    cursor: default;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-check-input:checked,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-check-input:checked,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-check-input:checked {
    background-color: #1977cc;
    border-color: #1977cc;
}

body.theme-2026 #WorkbookApp .workbook-material-form .form-check-input:focus,
body.theme-2026 .workbook-izi-modal .workbook-material-form .form-check-input:focus,
body.theme-2026 .workbook-bs-dialog .workbook-material-form .form-check-input:focus {
    border-color: #1977cc;
    box-shadow: 0 0 0 0.2rem rgba(25, 119, 204, 0.2);
}

body.theme-2026 #WorkbookApp .btn-material,
body.theme-2026 .workbook-izi-modal .btn-material {
    font-weight: 600;
    border-radius: 10px;
    padding: 0.625rem 1.25rem;
    min-height: 2.75rem;
    transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

body.theme-2026 #WorkbookApp .btn-material-primary,
body.theme-2026 .workbook-izi-modal .btn-material-primary {
    color: #ffffff;
    background-color: #1977cc;
    border: none;
}

body.theme-2026 #WorkbookApp .btn-material-primary:hover,
body.theme-2026 #WorkbookApp .btn-material-primary:focus,
body.theme-2026 .workbook-izi-modal .btn-material-primary:hover,
body.theme-2026 .workbook-izi-modal .btn-material-primary:focus {
    color: #ffffff;
    background-color: #145fa3;
    box-shadow: 0 4px 6px 0 rgba(22, 22, 26, 0.18);
}

body.theme-2026 #WorkbookApp .btn-material-secondary,
body.theme-2026 .workbook-izi-modal .btn-material-secondary {
    color: #6c757d;
    background-color: transparent;
    border: 1px solid #d9dee5;
}

body.theme-2026 #WorkbookApp .btn-material-secondary:hover,
body.theme-2026 #WorkbookApp .btn-material-secondary:focus,
body.theme-2026 .workbook-izi-modal .btn-material-secondary:hover,
body.theme-2026 .workbook-izi-modal .btn-material-secondary:focus {
    color: #2c4964;
    background-color: #f8f9fa;
    border-color: #c5cdd6;
}

body.theme-2026 #WorkbookApp .btn-material-success,
body.theme-2026 .workbook-izi-modal .btn-material-success {
    color: #ffffff;
    background-color: #2e7d32;
    border: none;
}

body.theme-2026 #WorkbookApp .btn-material-success:hover,
body.theme-2026 #WorkbookApp .btn-material-success:focus,
body.theme-2026 .workbook-izi-modal .btn-material-success:hover,
body.theme-2026 .workbook-izi-modal .btn-material-success:focus {
    color: #ffffff;
    background-color: #1b5e20;
    box-shadow: 0 4px 6px 0 rgba(22, 22, 26, 0.18);
}

body.theme-2026 #WorkbookApp .dataTables_wrapper .dataTables_length select,
body.theme-2026 #WorkbookApp .dataTables_wrapper .dataTables_filter input {
    border: none;
    border-bottom: 2px solid #d9dee5;
    border-radius: 0;
    background-color: transparent;
    height: 2.5rem;
    padding-left: 0;
    padding-right: 0;
    box-shadow: none;
}

body.theme-2026 #WorkbookApp .dataTables_wrapper .dataTables_length select:focus,
body.theme-2026 #WorkbookApp .dataTables_wrapper .dataTables_filter input:focus {
    border-bottom-color: #1977cc;
    box-shadow: none;
    outline: none;
}