/* =====================================================================
   Class Subject edit page (resources/views/class/edit_subject.blade.php)
   Token-driven layout for the assign/edit class-subject form. Loaded after
   content.css so it can lean on the redesigned .form-control / .badge / .btn
   rules. No hardcoded brand hex — theme/secondary via var() + color-mix().
   See DESIGN.md before changing radii / shadows / tints.
   ===================================================================== */

/* ---- Class context (read-only summary, replaces the old text inputs) ---- */
.cs-context {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 2.5rem;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.75rem;
    background: color-mix(in srgb, var(--theme-color) 4%, #fff);
    border: 1px solid color-mix(in srgb, var(--theme-color) 10%, rgba(27, 27, 27, 0.07));
    border-radius: 14px;
}

.cs-context__item {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    min-width: 0;
}

.cs-context__icon {
    flex: 0 0 auto;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 11px;
    color: var(--theme-color);
    background: color-mix(in srgb, var(--theme-color) 12%, #fff);
}

.cs-context__label {
    display: block;
    margin-bottom: 3px;
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #8c8c8c;
}

.cs-context__value {
    display: block;
    font-size: 0.9375rem;
    line-height: 1.3;
    color: #343a40;
    font-family: "Roboto-Medium", "ubuntu-medium", sans-serif;
}

/* ---- Section (Core / Elective blocks) ---- */
.cs-section__head {
    margin-bottom: 1.25rem;
}

.cs-section__title {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin: 0;
    font-size: 1rem;
    color: #343a40;
    font-family: "Roboto-Medium", "ubuntu-medium", sans-serif;
}

.cs-section__title::before {
    content: "";
    flex: 0 0 auto;
    width: 3px;
    height: 16px;
    border-radius: 2px;
    background: var(--theme-color);
}

.cs-section__desc {
    margin: 0.4rem 0 0;
    font-size: 0.8125rem;
    line-height: 1.45;
    color: #8c8c8c;
}

/* ---- A single subject row (core subjects) ---- */
.cs-subject-row {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.cs-subject-row:last-child {
    margin-bottom: 0;
}

.cs-field {
    position: relative;
    flex: 1 1 0;
    min-width: 0;
}

.cs-field--semester {
    flex: 0 0 34%;
}

.cs-field--action {
    flex: 0 0 auto;
}

.cs-field__label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.8125rem;
    color: rgba(27, 27, 27, 0.7);
}

/* Validation errors float below their field instead of adding to its flow
   height — otherwise a single erroring field grows taller than its row
   siblings and throws off the row's `align-items: flex-end` baseline. */
.cs-field .error,
.elective-subject-div .error {
    position: absolute;
    top: 100%;
    inset-inline-start: 0;
    width: 100%;
    margin: 0.3rem 0 0 !important;
    font-size: 0.75rem;
    line-height: 1.3;
}

/* Make room for the floated error so it doesn't collide with the next row */
.cs-subject-row:has(.has-danger) {
    margin-bottom: 2.25rem;
}

/* ---- Elective group (flat, structured block — repeated per group) ---- */
.cs-egroup {
    padding: 1.35rem 1.5rem 1.45rem;
    margin-bottom: 1rem;
    background: #fff;
    border: 1px solid rgba(27, 27, 27, 0.1);
    border-radius: 12px;
}

.cs-egroup:last-child {
    margin-bottom: 0;
}

/* Auto-number the visible groups (Group 1, Group 2…); hidden templates stay "Group" */
#edit-extra-elective-subject-group {
    counter-reset: egroup;
}

#edit-extra-elective-subject-group .cs-egroup {
    counter-increment: egroup;
}

#edit-extra-elective-subject-group .group-no::after {
    content: " " counter(egroup);
}

.cs-group__head {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.15rem;
}

.cs-group__title {
    margin: 0;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #8c8c8c;
    font-family: "Roboto-Medium", "ubuntu-medium", sans-serif;
}

.cs-group__remove {
    margin-inline-start: auto;
    flex: 0 0 auto;
    width: 32px;
    height: 32px;
    padding: 7px;
    box-sizing: border-box;
    border-radius: 8px;
    color: #dc3545;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.cs-group__remove:hover {
    background: color-mix(in srgb, #dc3545 10%, transparent);
}

/* Semester + total sit on their own rows — keep them compact, not full-width */
.cs-egroup .cs-field--semester {
    max-width: 320px;
}

.cs-electives__label {
    margin-top: 0.1rem;
}

/* Elective subject "or" choices — capped width so two selects don't fill the row */
.cs-electives {
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 0.6rem 0.7rem;
    margin-bottom: 1.2rem;
}

/* Make room for a floated error (see .cs-field .error) so it doesn't
   collide with the "Total Selectable Subjects" row below. */
.cs-electives:has(.has-danger) {
    margin-bottom: 2.5rem;
}

.elective-subject-div {
    position: relative;
    flex: 0 1 250px;
    min-width: 0;
}

.cs-electives .add-new-elective-subject {
    flex: 0 0 auto;
}

.cs-electives .or {
    flex: 0 0 auto;
    align-self: center;
    margin: 0;
    padding: 3px 9px;
    font-size: 0.68rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: #8c8c8c;
    background: rgba(27, 27, 27, 0.05);
    border-radius: 20px;
    font-family: "Roboto-Medium", "ubuntu-medium", sans-serif;
}

/* Floating remove (×) on the corner of an elective select */
.elective-subject-div .remove-elective-subject {
    position: absolute;
    top: -8px;
    inset-inline-end: -8px;
    width: 22px;
    height: 22px;
    padding: 3px;
    box-sizing: border-box;
    border-radius: 50%;
    color: #dc3545;
    background: #fff;
    border: 1px solid color-mix(in srgb, #dc3545 30%, #fff);
    box-shadow: 0 1px 3px rgba(16, 24, 40, 0.12);
    cursor: pointer;
    z-index: 2;
}

.elective-subject-div .remove-elective-subject:hover {
    background: color-mix(in srgb, #dc3545 10%, #fff);
}

.cs-total {
    max-width: 220px;
}

/* ---- Dashed "add" affordance (add core / add elective group) ---- */
.cs-add-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    font-size: 0.875rem;
    color: var(--theme-color);
    font-family: "Roboto-Medium", "ubuntu-medium", sans-serif;
    background: color-mix(in srgb, var(--theme-color) 3%, #fff);
    border: 1.5px dashed color-mix(in srgb, var(--theme-color) 35%, #d8dde6);
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.cs-add-section:hover {
    background: color-mix(in srgb, var(--theme-color) 8%, #fff);
    border-color: var(--theme-color);
}

/* ---- Section divider + submit footer ---- */
.cs-divider {
    height: 1px;
    margin: 1.75rem 0;
    border: 0;
    background: rgba(27, 27, 27, 0.06);
}

.cs-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(27, 27, 27, 0.06);
}

/* ---- Responsive ---- */
@media (max-width: 767.98px) {
    .cs-egroup {
        padding: 1.1rem 1.15rem 1.2rem;
    }

    .cs-context {
        gap: 1rem;
        padding: 1.1rem 1.15rem;
    }

    .cs-context__item {
        flex: 1 1 100%;
    }

    .cs-subject-row,
    .cs-electives {
        flex-direction: column;
        align-items: stretch;
    }

    .cs-field,
    .cs-field--semester,
    .elective-subject-div,
    .cs-total {
        flex: 1 1 auto;
        max-width: none;
    }

    .cs-subject-row .cs-field--action {
        align-self: flex-end;
    }

    /* Stacked layout: give the floated error room above the next field */
    .cs-subject-row:has(.has-danger) {
        row-gap: 2.25rem;
    }

    .cs-electives:has(.has-danger) {
        row-gap: 2.25rem;
    }

    .cs-electives .or {
        align-self: center;
        margin: 0.1rem 0;
    }

    .elective-subject-div .remove-elective-subject {
        inset-inline-end: 6px;
        top: 6px;
    }
}