/**
 * Shared Resource Form Styles
 * Used by both /create and /edit pages to ensure consistent appearance
 */

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-group label .required {
    color: var(--error-color);
}

.form-group .help-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-family: inherit;
    transition: border-color 0.2s;
    background: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #999;
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-select {
    cursor: pointer;
}

/* Grade Level Checkboxes */
.grade-levels {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.grade-checkbox {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    padding: 0.5rem 0.75rem;
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
    user-select: none;
}

.grade-checkbox:hover {
    border-color: var(--primary-light);
    background: var(--background-warm);
}

.grade-checkbox.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Subject Tags */
.subject-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.subject-tag {
    padding: 0.5rem 1rem;
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: 2rem;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.subject-tag:hover {
    border-color: var(--primary-light);
}

.subject-tag.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 2000;
}

.toast {
    background: var(--text-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-top: 0.5rem;
    animation: slideIn 0.3s ease;
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--error-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}

.loading-overlay.hidden {
    display: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive adjustments for grade levels */
@media (max-width: 768px) {
    .grade-levels {
        gap: 0.25rem;
    }

    .grade-checkbox {
        padding: 0.4rem 0.6rem;
        font-size: 0.8rem;
    }
}