/* =============================================
   Math-PDF-Generator - Main Stylesheet
   Professional Design System
   ============================================= */

/* Import all component styles */
@import './components/variables.css';
@import './components/reset.css';
@import './components/typography.css';
@import './components/layout.css';
@import './components/navigation.css';
@import './components/buttons.css';
@import './components/forms.css';
@import './components/cards.css';
@import './components/modals.css';
@import './components/animations.css';
@import './components/utilities.css';

/* =============================================
   Page-specific styles
   ============================================= */

.generator-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.form-section {
    padding: var(--spacing-lg);
}

.form-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    z-index: 2;
}

.form-section-title svg,
.form-section-title i {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

.form-subsection {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.form-subsection-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.8125rem;
}

.optional-tag {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--text-tertiary);
    text-transform: none;
    letter-spacing: normal;
    margin-left: var(--spacing-xs);
}

/* Accordion */
.form-accordion {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 0;
    margin-bottom: var(--spacing-lg);
}

.form-accordion-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background-color var(--transition-fast);
}

.form-accordion-toggle:hover {
    background-color: var(--bg-secondary);
}

.form-accordion-toggle .form-subsection-title {
    margin: 0;
}

.accordion-icon {
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
    font-size: 0.875rem;
}

.form-accordion-toggle[aria-expanded="true"] .accordion-icon {
    transform: rotate(180deg);
}

.form-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 var(--spacing-lg);
}

.form-accordion-content.expanded {
    max-height: 1000px;
    padding: 0 var(--spacing-lg) var(--spacing-lg) var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    position: relative;
    z-index: 2;
}

/* Topic selection grid */
.topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    max-height: 400px;
    overflow-y: auto;
    padding: var(--spacing-sm);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

/* Topic subject headers within the grid */
.topic-subject-header {
    grid-column: 1 / -1;
    font-weight: 600;
    color: var(--accent-primary);
    margin-top: 8px;
    font-size: 0.875rem;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
}

.topic-subject-header:first-of-type {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

/* Operation checkboxes */
.operation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

/* Form actions */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 2;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

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

    .topic-grid {
        grid-template-columns: 1fr;
    }

    .operation-grid {
        grid-template-columns: 1fr;
    }
}

/* Alert messages */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
}

.alert-info {
    background-color: var(--info-light);
    color: var(--info);
    border-color: var(--info);
}

.alert-success {
    background-color: var(--success-light);
    color: var(--success);
    border-color: var(--success);
}

.alert-warning {
    background-color: var(--warning-light);
    color: var(--warning);
    border-color: var(--warning);
}

.alert-error {
    background-color: var(--error-light);
    color: var(--error);
    border-color: var(--error);
}