/* ============================================================
   FORMS COMPONENT
   Extended form styles beyond the basics in main.css.
   Includes inline forms, form rows, field validation states,
   and specialised input patterns.
   ============================================================ */

/* ----- Form Row (multi-column) ----- */
.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

/* Two-column and three-column explicit widths */
.form-row--2 .form-group { flex: 1 1 0; }
.form-row--3 .form-group { flex: 1 1 0; }

/* ----- Inline Form ----- */
.form-inline {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.form-inline .form-group {
    margin-bottom: 0;
}

.form-inline .form-input,
.form-inline .form-select {
    width: auto;
    min-width: 180px;
}

/* ----- Validation States ----- */
.form-group--error .form-input,
.form-group--error .form-select,
.form-group--error .form-textarea {
    border-color: var(--danger);
}

.form-group--error .form-input:focus,
.form-group--error .form-select:focus,
.form-group--error .form-textarea:focus {
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--danger) 12%, transparent);
}

.form-group--success .form-input,
.form-group--success .form-select,
.form-group--success .form-textarea {
    border-color: var(--success);
}

.form-group--success .form-input:focus,
.form-group--success .form-select:focus,
.form-group--success .form-textarea:focus {
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--success) 12%, transparent);
}

/* Error / help text below the field */
.form-error {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.6875rem;
    color: var(--danger);
}

.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.6875rem;
    color: var(--text-muted);
}

/* ----- Checkbox / Radio ----- */
.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
    flex-shrink: 0;
}

.form-check-label {
    font-size: 0.8125rem;
    color: var(--text);
    cursor: pointer;
}

/* ----- Input Group (prefix / suffix) ----- */
.input-group {
    display: flex;
    align-items: stretch;
}

.input-group .form-input {
    border-radius: 0;
    flex: 1;
}

.input-group .form-input:first-child {
    border-radius: 4px 0 0 4px;
}

.input-group .form-input:last-child {
    border-radius: 0 4px 4px 0;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: 0.4rem 0.65rem;
    font-size: 0.8125rem;
    color: var(--gray-600);
    background: var(--gray-50);
    border: 1px solid var(--border);
    white-space: nowrap;
}

.input-group-text:first-child {
    border-radius: 4px 0 0 4px;
    border-right: none;
}

.input-group-text:last-child {
    border-radius: 0 4px 4px 0;
    border-left: none;
}

/* ----- Search Input ----- */
.form-search {
    position: relative;
}

.form-search .form-input {
    padding-left: 2rem;
}

.form-search-icon {
    position: absolute;
    left: 0.625rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 0.8125rem;
    pointer-events: none;
}

/* ----- File Input ----- */
.form-file {
    position: relative;
}

.form-file-input {
    width: 100%;
    padding: 0.4rem 0.65rem;
    font-size: 0.8125rem;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
}

.form-file-input::file-selector-button {
    padding: 0.2rem 0.625rem;
    margin-right: 0.625rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text);
    background: var(--gray-100);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.12s;
}

.form-file-input::file-selector-button:hover {
    background: var(--gray-200);
}

/* ----- Form Section / Fieldset ----- */
.form-section {
    margin-bottom: 1.25rem;
}

.form-section-title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.75rem;
    padding-bottom: 0.375rem;
    border-bottom: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

/* ----- Form Actions (button row) ----- */
.form-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1.25rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

/* ----- Responsive ----- */
@media (max-width: 640px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-row .form-group {
        margin-bottom: 1rem;
    }

    .form-inline {
        flex-direction: column;
        align-items: stretch;
    }

    .form-inline .form-input,
    .form-inline .form-select {
        width: 100%;
        min-width: 0;
    }

    .form-actions {
        flex-direction: column-reverse;
    }

    .form-actions .btn {
        width: 100%;
    }
}