/* Research Section Specific Styles */

.research-hero {
    background: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
    padding: 4rem 0;
    color: white;
    text-align: center;
}

.research-centers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.research-center-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.research-center-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.center-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1e40af 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.center-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.center-name {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.center-focus {
    font-size: 0.9rem;
    opacity: 0.9;
}

.center-content {
    padding: 1.5rem;
}

.center-stats {
    display: flex;
    justify-content: space-around;
    margin: 1rem 0;
    padding: 1rem 0;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
}

.center-stat {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-blue);
}

.stat-label {
    color: #666;
    font-size: 0.85rem;
}

.publications-showcase {
    display: grid;
    gap: 2rem;
    margin: 2rem 0;
}

.publication-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-left: 4px solid var(--accent-gold);
}

.publication-type {
    display: inline-block;
    background: var(--primary-blue);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.publication-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.publication-authors {
    color: #666;
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.publication-journal {
    display: flex;
    gap: 1rem;
    color: #666;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.publication-metrics {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

.metric {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #666;
}

.metric i {
    color: var(--accent-gold);
}

.conferences-timeline {
    position: relative;
    padding: 2rem 0;
}

.conference-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.conference-date {
    min-width: 120px;
    background: var(--accent-gold);
    color: white;
    padding: 1.2rem;
    border-radius: 12px;
    text-align: center;
}

.conference-day {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.conference-month-year {
    font-size: 0.85rem;
    opacity: 0.95;
}

.conference-details {
    flex: 1;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.conference-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.conference-meta {
    display: flex;
    gap: 1.5rem;
    color: #666;
    font-size: 0.9rem;
    margin: 1rem 0;
}

.conference-description {
    color: #666;
    line-height: 1.6;
}

.innovation-projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, #ddd6fe 0%, #c4b5fd 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary-blue);
}

.project-content {
    padding: 1.5rem;
}

.project-status {
    display: inline-block;
    background: #10b981;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.project-status.ongoing { background: #3b82f6; }
.project-status.completed { background: #10b981; }
.project-status.planning { background: #f59e0b; }

.project-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.8rem;
}

.project-team {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #666;
    font-size: 0.9rem;
    margin-top: 1rem;
}

.research-impact {
    background: linear-gradient(to right, #f0f9ff, #e0f2fe);
    padding: 3rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.impact-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.impact-metric {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
}

.impact-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.impact-label {
    color: #666;
    font-size: 1.1rem;
}

.research-areas {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.research-area-tag {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border-top: 4px solid var(--primary-blue);
    cursor: pointer;
    transition: all 0.3s ease;
}

.research-area-tag:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.area-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.area-name {
    font-weight: 700;
    color: var(--primary-blue);
}

/* ================================================
   RESPONSIVE — 1024px (Tablet Landscape)
   ================================================ */
@media (max-width: 1024px) {
    .research-centers-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
    .innovation-projects { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
    .impact-number { font-size: 2.5rem; }
    .conference-item { gap: 1.5rem; }
    .research-impact { padding: 2rem; }
}

/* ================================================
   RESPONSIVE — 768px (Tablet Portrait / Mobile)
   ================================================ */
@media (max-width: 768px) {
    /* Research hero */
    .research-hero { padding: 2.5rem 0; }

    /* Research centers */
    .research-centers-grid { grid-template-columns: 1fr; }
    .center-header { padding: 1.5rem; }
    .center-icon { font-size: 2.5rem; }
    .center-name { font-size: 1.15rem; }

    /* Publications */
    .publication-card { padding: 1.5rem; }
    .publication-title { font-size: 1.1rem; }
    .publication-journal { flex-direction: column; gap: 0.5rem; }
    .publication-metrics { flex-wrap: wrap; gap: 1rem; }

    /* Conferences */
    .conference-item { flex-direction: column; gap: 1rem; margin-bottom: 2rem; }
    .conference-date { min-width: auto; display: flex; align-items: center; gap: 1rem; padding: 0.75rem 1rem; }
    .conference-day { font-size: 1.75rem; }
    .conference-meta { flex-direction: column; gap: 0.5rem; }

    /* Innovation projects */
    .innovation-projects { grid-template-columns: 1fr; }
    .project-image { height: 170px; }

    /* Impact section */
    .research-impact { padding: 2rem 1.25rem; margin: 1.5rem 0; }
    .impact-metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .impact-metric { padding: 1.25rem; }
    .impact-number { font-size: 2rem; }
    .impact-label { font-size: 0.95rem; }

    /* Research areas */
    .research-areas { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .research-area-tag { padding: 1.25rem; }
    .area-icon { font-size: 2rem; }
}

/* ================================================
   RESPONSIVE — 640px (Small Mobile)
   ================================================ */
@media (max-width: 640px) {
    .impact-metrics-grid { grid-template-columns: 1fr; }
    .research-areas { grid-template-columns: 1fr; }
    .center-stats { flex-direction: column; gap: 1rem; }
    .project-image { height: 140px; font-size: 3rem; }
}