/*
 * section.css — Shared styles for section index pages (participant, researcher)
 * All values reference CSS custom properties from styles.css :root.
 * Sourced from assets/tokens/design-tokens.json.
 */

/* ── Sub-page Hero ───────────────────────────────────────────────────────── */
.section-hero {
    padding: 48px 0 40px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

.section-hero h1 {
    font-size: 36px;
    line-height: 44px;
    font-weight: 600;
    color: var(--color-neutral-12);
    letter-spacing: -0.02em;
    margin: 0 0 var(--spacing-sm);
}

.section-hero-subtitle {
    font-size: var(--font-size-h5);
    color: var(--color-neutral-7);
    margin: 0 0 var(--spacing-xl);
    line-height: var(--line-height-h5);
}

/* Section badge (Participant / Researcher tag) */
.section-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    margin-bottom: var(--spacing-md);
}

.section-hero-badge .material-icons {
    font-size: 14px;
}

.participant-badge {
    background: var(--color-participant-bg);
    color: var(--color-participant);
}

.researcher-badge {
    background: var(--color-researcher-bg);
    color: var(--color-researcher);
}

/* Compact search bar (opens modal on click) */
.section-search-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 46px;
    background: var(--color-neutral-1);
    border: 1.5px solid var(--color-neutral-5);
    border-radius: var(--radius-pill);
    cursor: text;
    text-align: left;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.section-search-bar:hover {
    border-color: var(--color-neutral-6);
}

.section-search-bar:focus {
    outline: none;
    border-color: var(--color-primary-6);
    box-shadow: 0 0 0 3px var(--color-primary-1);
}

.section-search-bar .material-icons {
    font-size: 18px;
    color: var(--color-neutral-7);
    flex-shrink: 0;
}

.section-search-placeholder {
    flex: 1;
    font-family: var(--font-family);
    font-size: 14px;
    color: var(--color-neutral-6);
}

.search-kbd {
    flex-shrink: 0;
    font-family: var(--font-family);
    font-size: 11px;
    font-weight: 500;
    color: var(--color-neutral-6);
    background: var(--color-neutral-3);
    border: 1px solid var(--color-neutral-5);
    border-radius: var(--radius-sm);
    padding: 2px 6px;
    line-height: 1.6;
    pointer-events: none;
}

@media (max-width: 480px) {
    .search-kbd { display: none; }
}

/* ── Section title ───────────────────────────────────────────────────────── */
.section-title {
    font-size: var(--font-size-h4);
    font-weight: 600;
    color: var(--color-neutral-10);
    margin: 0 0 var(--spacing-lg);
}

/* ── Journey Grid (participant) ──────────────────────────────────────────── */
.journey-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border: 1px solid var(--color-neutral-4);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-neutral-1);
}

.journey-card {
    display: block;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-right: 1px solid var(--color-neutral-4);
    border-bottom: 1px solid var(--color-neutral-4);
    text-decoration: none;
    color: inherit;
    transition: background var(--transition-fast);
}

.journey-card:nth-child(2n) {
    border-right: none;
}

.journey-card:last-child {
    border-bottom: none;
}

.journey-card--wide {
    grid-column: 1 / -1;
    border-right: none;
}

.journey-card:hover {
    background: var(--color-neutral-2);
}

.journey-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.journey-card-header > .material-icons:first-child {
    font-size: 18px;
    color: var(--color-primary-6);
}

.journey-card-title {
    font-size: var(--font-size-h5);
    font-weight: 600;
    color: var(--color-neutral-10);
    flex: 1;
}

.journey-card-arrow {
    font-size: 18px;
    color: var(--color-neutral-5);
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.journey-card:hover .journey-card-arrow {
    color: var(--color-primary-6);
    transform: translateX(3px);
}

.journey-card p {
    font-size: 13px;
    color: var(--color-neutral-7);
    line-height: 1.6;
    margin: 0;
}

/* When all cards are equal-width (no --wide), remove bottom border from last 2 */
.journey-grid--even .journey-card:nth-last-child(-n+2) {
    border-bottom: none;
}

@media (max-width: 600px) {
    .journey-grid {
        grid-template-columns: 1fr;
    }
    .journey-card,
    .journey-card:nth-child(2n) {
        border-right: none;
    }
    .journey-card--wide,
    .journey-grid--even .journey-card:nth-last-child(-n+2) {
        grid-column: auto;
        border-bottom: 1px solid var(--color-neutral-4);
    }
    .journey-card:last-child {
        border-bottom: none;
    }
}

/* ── Journey Steps (researcher tab layout) ───────────────────────────────── */
.journey-section {
    margin-bottom: var(--spacing-3xl);
}

.journey-steps-horizontal {
    background: var(--color-neutral-1);
    border: 1px solid var(--color-neutral-4);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.step-tabs {
    display: flex;
    background: var(--color-neutral-3);
    overflow-x: auto;
    border-bottom: 1px solid var(--color-neutral-4);
    padding: 0;
    gap: 0;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.step-tabs::-webkit-scrollbar {
    display: none;
}

.step-tab {
    flex: 1;
    min-width: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 10px 11px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    color: var(--color-neutral-7);
    font-family: var(--font-family);
    white-space: nowrap;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.step-tab:hover {
    color: var(--color-neutral-10);
    background: var(--color-neutral-4);
}

.step-tab.active {
    color: var(--color-primary-6);
    background: var(--color-neutral-1);
    border-bottom-color: var(--color-primary-6);
}

.step-tab .material-icons {
    font-size: 20px;
}

.step-label {
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
}

.step-content-area {
    padding: var(--spacing-xl) var(--spacing-2xl);
    min-height: 160px;
}

.step-content {
    display: none;
    animation: fadeSlideIn var(--transition-normal);
}

.step-content.active {
    display: block;
}

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.step-content h3 {
    font-size: var(--font-size-h5);
    font-weight: 600;
    color: var(--color-neutral-10);
    margin: 0 0 var(--spacing-sm);
}

.step-content p {
    font-size: 14px;
    color: var(--color-neutral-8);
    line-height: 1.7;
    margin: 0 0 var(--spacing-md);
    max-width: 560px;
}

.step-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary-6);
    text-decoration: none;
    transition: gap var(--transition-fast), color var(--transition-fast);
}

.step-link:hover {
    color: var(--color-primary-7);
    gap: 8px;
}

/* ── Topics Grid (participant) ───────────────────────────────────────────── */
.topics-section {
    margin-bottom: var(--spacing-3xl);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.topic-category {
    display: block;
    text-decoration: none;
    color: inherit;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-neutral-4);
    border-radius: var(--radius-md);
    background: var(--color-neutral-1);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.topic-category:hover {
    border-color: var(--color-neutral-5);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.topic-category h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 13px;
    font-weight: 600;
    color: var(--color-neutral-10);
    margin: 0 0 var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-neutral-4);
    letter-spacing: 0.01em;
}

.topic-category h3 .material-icons {
    font-size: 17px;
    color: var(--color-primary-6);
}

.topic-category p {
    font-size: 13px;
    color: var(--color-neutral-7);
    line-height: 1.55;
    margin: 0;
}

.topic-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.topic-category li {
    margin-bottom: var(--spacing-sm);
}

.topic-category li:last-child {
    margin-bottom: 0;
}

.topic-category a {
    font-size: 13px;
    color: var(--color-neutral-8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.topic-category a:hover {
    color: var(--color-primary-6);
    text-decoration: underline;
}

/* ── Featured Resources (researcher) ─────────────────────────────────────── */
.featured-resources-section {
    margin-bottom: var(--spacing-3xl);
    text-align: center;
}

.featured-gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.feature-gallery-card {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-neutral-4);
    background: var(--color-neutral-1);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.feature-gallery-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.feature-gallery-thumb {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
    border-radius: 0;
}

.feature-gallery-thumb .material-icons {
    font-size: 52px;
    opacity: 0.75;
}

.feature-gallery-thumb--blue {
    background: #e8ecff;
    color: var(--color-primary-6);
}

.feature-gallery-thumb--purple {
    background: #ede9ff;
    color: #7c3aed;
}

.feature-gallery-thumb--green {
    background: #d1fae5;
    color: #065f46;
}

.feature-gallery-thumb--amber {
    background: #fef3c7;
    color: #92400e;
}

.feature-gallery-title {
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-xs);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-neutral-10);
    line-height: 1.35;
}

.feature-gallery-desc {
    font-size: 13px;
    color: var(--color-neutral-7);
    padding: 0 var(--spacing-lg) var(--spacing-md);
    line-height: 1.5;
    margin: 0;
}

/* ── Researcher Topic Cards ───────────────────────────────────────────────── */
.researcher-topics-section {
    margin-bottom: var(--spacing-3xl);
}

.researcher-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-sm);
}

/* Now proper <a> tags — remove old div-click approach */
.researcher-topic-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-neutral-1);
    border: 1px solid var(--color-neutral-4);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition-normal),
                box-shadow var(--transition-normal),
                transform var(--transition-fast);
}

.researcher-topic-card:hover {
    border-color: var(--color-researcher);
    box-shadow: 0 4px 16px rgba(114, 46, 209, 0.08);
    transform: translateY(-1px);
}

.topic-card-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--color-primary-1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background var(--transition-fast);
}

.researcher-topic-card:hover .topic-card-icon {
    background: var(--color-researcher-bg);
}

.topic-card-icon .material-icons {
    font-size: 18px;
    color: var(--color-primary-6);
}

.topic-card-body {
    flex: 1;
    min-width: 0;
}

.topic-card-body h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-neutral-10);
    margin: 0 0 4px;
    line-height: 1.35;
}

.researcher-topic-card:hover .topic-card-body h3 {
    color: var(--color-researcher);
}

.topic-card-body p {
    font-size: 12px;
    color: var(--color-neutral-7);
    margin: 0 0 var(--spacing-sm);
    line-height: 1.5;
}

.topic-preview {
    list-style: none;
    padding: 0;
    margin: 0;
}

.topic-preview li {
    font-size: 12px;
    color: var(--color-neutral-7);
    margin-bottom: 3px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.topic-preview li::before {
    content: '';
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: var(--color-neutral-5);
    flex-shrink: 0;
}

.topic-card-arrow {
    font-size: 18px;
    color: var(--color-neutral-5);
    flex-shrink: 0;
    align-self: center;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.researcher-topic-card:hover .topic-card-arrow {
    color: var(--color-researcher);
    transform: translateX(2px);
}

/* ── FAQ Section ──────────────────────────────────────────────────────────── */
.faq-section {
    text-align: center;
    padding: var(--spacing-xl) 0 var(--spacing-3xl);
    border-top: 1px solid var(--color-neutral-4);
}

.faq-section h2 {
    font-size: var(--font-size-h5);
    font-weight: 600;
    color: var(--color-neutral-10);
    margin: 0 0 var(--spacing-md);
}

.faq-links {
    display: flex;
    justify-content: center;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .section-hero {
        padding: 32px 0 28px;
    }

    .section-hero h1 {
        font-size: 28px;
        line-height: 36px;
    }

    .step-tabs {
        gap: 0;
    }

    .step-tab {
        min-width: 80px;
        padding: 10px 8px;
    }

    .step-label {
        font-size: 11px;
    }

    .step-content-area {
        padding: var(--spacing-lg);
    }

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

    .featured-gallery-grid {
        grid-template-columns: 1fr;
    }

    .researcher-topics-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .step-tab .material-icons {
        display: none;
    }

    .step-tab {
        padding: 10px 6px;
    }
}