/**
 * Research Page
 * Dedicated /research/ page — per-theme sections with project grids.
 * Relies on theme-grid.css for .projects-grid, .project-item, etc.
 */

.research-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1em;
}

.research-page-header {
    text-align: center;
    margin: 1em auto 3em;
    max-width: 800px;
}

.research-page-header h1 {
    font-size: clamp(2em, 5vw, 3em);
    font-weight: 500;
    letter-spacing: -0.02em;
    margin: 0 0 0.5em 0;
    color: var(--color-text-title);
}

.research-page-subtitle {
    font-size: 1.1em;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Individual theme section */
.research-theme-section {
    margin-bottom: 4em;
    scroll-margin-top: 90px; /* clears the 70px sticky header */
}

/* Theme header panel */
.research-theme-header {
    display: flex;
    align-items: flex-start;
    gap: 1.5em;
    padding: 2em;
    margin-bottom: 2em;
    background: var(--panel-bg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--panel-border);
    box-shadow: var(--shadow-lg);
}

.research-theme-icon {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    margin-top: 0.25em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.research-theme-icon svg {
    width: 80px;
    height: 80px;
    fill: var(--color-accent-primary);
}



.research-theme-meta {
    flex: 1;
    min-width: 0;
}

.research-theme-meta h2 {
    font-size: clamp(1.4em, 3vw, 1.8em);
    margin: 0 0 0.5em 0;
    font-weight: 600;
    color: var(--color-text-title);
}

.theme-description {
    color: var(--color-text-secondary);
    font-size: 1em;
    line-height: 1.6;
    margin: 0 0 1em 0;
}

/* 3-col project grid on wide screens */
@media (min-width: 1200px) {
    .research-theme-section .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Stack header on medium screens */
@media (max-width: 1024px) {
    .research-theme-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .research-theme-icon {
        margin-top: 0;
    }
}

@media (max-width: 768px) {
    .research-page {
        padding: 0 0.5em;
    }

    .research-theme-header {
        padding: 1.5em;
        gap: 1em;
    }

    .research-theme-section {
        margin-bottom: 3em;
    }
}

@media (max-width: 480px) {
    .research-page-header {
        margin-bottom: 2em;
    }

    .research-theme-icon {
        width: 60px;
        height: 60px;
    }

    .research-theme-icon svg {
        width: 60px;
        height: 60px;
    }
}