/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    color: #0f172a; /* slate-900 */
    background-color: #f8fafc; /* slate-50 */
    line-height: 1.6;
}

/* Typography Overrides */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Crimson Text', serif;
}

.font-serif {
    font-family: 'Crimson Text', serif;
}

.font-sans {
    font-family: 'Inter', sans-serif;
}

/* Glassmorphism Navigation */
.glass {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
}

.nav-item {
    position: relative;
    font-weight: 500;
    color: #475569; /* slate-600 */
    transition: color 0.2s;
}

.nav-item:hover {
    color: #1e293b; /* slate-800 */
}

.nav-item::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: #d4a562; /* accent */
    transition: width 0.3s ease;
}

.nav-item:hover::after {
    width: 100%;
}

/* Hero Section */
.profile-image-container {
    position: relative;
    z-index: 10;
}

/* Section Styling */
section {
    position: relative;
}

.section-header h2 {
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 40%;
    height: 3px;
    background-color: rgba(212, 165, 98, 0.3); /* accent with opacity */
    z-index: -1;
}

/* Main Layout Grid */
.grid-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .grid-layout {
        grid-template-columns: 320px 1fr;
        gap: 4rem;
        align-items: start;
    }
}

/* Cards */
.news-card, .research-card, .contact-card {
    transition: all 0.3s ease;
}

.news-card:hover, .research-card:hover, .contact-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: #cbd5e1; /* slate-300 */
}

.contact-panels {
    display: flex;
    flex-wrap: nowrap;
    gap: 1rem;
    align-items: stretch;
}

.contact-panel {
    display: flex;
    flex-direction: column;
    flex: 1 1 0;
    min-width: 0;
    min-height: 230px;
    padding: 0.9rem;
    border: 1px solid #e5e7eb;
    border-radius: 0.75rem;
    background: linear-gradient(180deg, #ffffff 0%, #fafaf9 100%);
}

.contact-panel-title {
    text-align: center;
}

.map-container {
    flex: 1 1 auto;
    min-height: 180px;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
    border: 1px solid #f1f5f9;
    background: #ffffff;
}

.contact-map-frame {
    width: 100%;
    height: 100%;
    min-height: 180px;
    display: block;
}

.visitor-stats {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.visitor-stats-widget {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 300px;
    min-height: 180px;
    margin: 0 auto;
    border-radius: 0.75rem;
    border: 1px solid #f1f5f9;
    background: #ffffff;
    overflow: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Utility */
.text-accent {
    color: #d4a562;
}

.bg-accent {
    background-color: #d4a562;
}

.border-accent {
    border-color: #d4a562;
}

.hover\:text-accent:hover {
    color: #d4a562;
}

/* Research Highlights (Accordion/Details Style if needed, but using clean list for now) */
details summary {
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: justify;
}

/* New Publication List Styles */
.pub-year-group {
    margin-bottom: 2rem;
}

.pub-year-header {
    font-family: 'Inter', sans-serif; /* Wider than Crimson Text */
    font-size: 1.35rem; /* Slightly larger */
    font-weight: 700;
    font-style: italic;
    letter-spacing: 0.05em; /* Add spacing for wider look */
    color: #1e293b;
    margin-bottom: 1rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.25rem;
    display: inline-block;
}

.pub-list-ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}

.pub-list-item {
    display: flex;
    gap: 1.4rem;
    align-items: flex-start;
    padding: 1.2rem;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: none;
    transition: border-color 0.25s ease, background-color 0.25s ease;
    line-height: 1.5;
}

.pub-list-item:hover {
    border-color: rgba(212, 165, 98, 0.55);
}

.pub-line-1 {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.55rem;
    font-size: 1rem;
    margin-bottom: 0.45rem;
}

.pub-venue-tag,
.pub-meta-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.14rem 0.52rem;
    border-radius: 8px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: #f8fafc;
    box-shadow: none;
    font-size: 0.69rem;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: 0.015em;
    white-space: nowrap;
}

.pub-title-text {
    font-weight: 600;
    color: #1e293b;
    font-size: 1.08rem;
    line-height: 1.35;
    flex: 0 1 auto;
}

.pub-link-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.2;
    padding: 0.34rem 0.72rem;
    border: 1px solid #dbe4ef;
    border-radius: 12px;
    color: #475569;
    text-decoration: none;
    transition: all 0.22s ease;
    vertical-align: middle;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 0 10px 18px -16px rgba(15, 23, 42, 0.45);
    letter-spacing: 0;
}

.pub-link-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 24px -18px rgba(15, 23, 42, 0.45);
}

.pub-link-btn-primary {
    border-color: rgba(59, 130, 246, 0.22);
    color: #1d4ed8;
    background: linear-gradient(180deg, #f8fbff 0%, #eef5ff 100%);
}

.pub-link-btn-primary:hover {
    border-color: rgba(59, 130, 246, 0.4);
    color: #1e40af;
    background: linear-gradient(180deg, #f1f7ff 0%, #e0eeff 100%);
}

.pub-link-btn-secondary {
    border-color: rgba(148, 163, 184, 0.28);
    color: #334155;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.pub-link-btn-secondary:hover {
    border-color: rgba(100, 116, 139, 0.38);
    color: #0f172a;
    background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
}

.pub-link-btn-tertiary:hover {
    border-color: rgba(212, 165, 98, 0.55);
    color: #b7791f;
    background: linear-gradient(180deg, #fffdf8 0%, #fff7e8 100%);
}

.tag-arxiv {
    color: #b91c1c;
    border-color: rgba(220, 38, 38, 0.2);
    background: #fff1f2;
}

.tag-cvf {
    color: #7c3aed;
    border-color: rgba(124, 58, 237, 0.18);
    background: #f5f3ff;
}

.tag-ieee {
    color: #1d4ed8;
    border-color: rgba(29, 78, 216, 0.18);
    background: #eff6ff;
}

.tag-openreview {
    color: #0f766e;
    border-color: rgba(15, 118, 110, 0.18);
    background: #ecfeff;
}

.tag-conference {
    color: #b7791f;
    border-color: rgba(212, 165, 98, 0.36);
    background: #fffaf0;
}

.tag-under-review {
    color: #2563eb;
    border-color: rgba(37, 99, 235, 0.22);
    background: #eff6ff;
}

.pub-title-link {
    color: #1e293b;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.pub-title-link:hover {
    color: #d4a562; /* accent */
    border-bottom-color: #d4a562;
}

.pub-line-2 {
    font-size: 0.95rem;
    color: #4b5563; /* neutral-600 */
    margin-bottom: 0.35rem;
}

.pub-line-2 strong, .pub-line-2 b {
    color: #1e293b; /* primary */
    font-weight: 600;
}

.pub-line-3 {
    font-size: 0.9rem;
    color: #64748b; /* slate-500 */
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.42rem;
    margin-top: 0.1rem;
}

/* Publication Card Typography (Legacy/Unused for now) */
.pub-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b; /* primary */
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.pub-authors {
    font-size: 0.95rem;
    color: #64748b; /* muted */
    margin-bottom: 0.5rem;
}

.pub-venue {
    font-size: 0.9rem;
    font-weight: 500;
    color: #64748b; /* muted */
    margin-bottom: 1rem;
    font-style: italic;
}

.pub-highlight {
    font-size: 0.85rem;
    color: #d97706; /* amber-600 */
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Publication CCF Ranks and Badges */
.pub-badge-highlight {
    display: inline-block;
    background-color: #ef4444; /* Red */
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.16rem 0.5rem;
    border-radius: 999px;
    vertical-align: middle;
    line-height: 1.2;
    box-shadow: 0 10px 18px -14px rgba(239, 68, 68, 0.9);
}

.ccf-rank {
    font-weight: 700;
    margin-left: 0.3rem;
}

.ccf-a {
    color: #dc2626; /* Red-600 */
}

.ccf-b {
    color: #2563eb; /* Blue-600 */
}

.ccf-c {
    color: #16a34a; /* Green-600 */
}

.publication:hover {
    border-color: #d4a562; /* accent */
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.05);
    transform: translateY(-2px);
}

/* Legacy logo class */
.venue-logo {
    display: none;
}

/* News Item Dashed Line */
.news-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    align-items: baseline;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed #e2e8f0;
}

.news-date {
    font-family: 'Kalam', cursive; /* Cleaner, wider handwriting font */
    font-weight: 400; 
    font-size: 0.9rem; 
    color: #64748b;
    white-space: nowrap;
}

.news-content {
    font-family: 'Kalam', cursive; /* Cleaner, wider handwriting font */
    font-size: 0.95rem; 
    color: #334155;
    line-height: 1.5;
}

.news-item:last-child {
    border-bottom: none;
}

/* Formal Text */
.formal-font {
    font-family: 'Times New Roman', Times, serif;
    font-size: 1.05rem;
    line-height: 1.6;
}

/* Shared Subpage Layout */
.content-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 6rem 1.25rem 3rem;
}

.main-wrapper {
    width: 100%;
}

.main-content {
    width: 100%;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 40%;
    height: 3px;
    background-color: rgba(212, 165, 98, 0.3);
    z-index: -1;
}

.subtitle-text {
    font-size: 0.95rem;
    color: #64748b;
    margin-left: 0.5rem;
}

.content-block {
    margin-top: 1.5rem;
}

.publication-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1rem 0 0;
}

.filter-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.95rem;
    border-radius: 999px;
    border: 1px solid #dbe4ef;
    background: #ffffff;
    color: #475569;
    text-decoration: none;
    transition: all 0.2s ease;
}

.filter-link:hover,
.filter-link.active {
    background: #1e293b;
    border-color: #1e293b;
    color: #ffffff;
}

.view-all-container {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

.view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.1rem;
    border-radius: 999px;
    border: 1px solid #dbe4ef;
    background: #ffffff;
    color: #334155;
    text-decoration: none;
    transition: all 0.2s ease;
}

.view-all-btn:hover {
    border-color: rgba(212, 165, 98, 0.55);
    color: #b7791f;
    background: #fffaf0;
}

.empty-state {
    text-align: center;
    color: #64748b;
    padding: 2rem 0;
}

/* Service Section */
.service-category {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #f1f5f9;
    margin-bottom: 1.5rem;
}

.service-category:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.service-category h3 {
    font-size: 1rem; /* Match education header size */
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.35rem;
    font-family: 'Inter', sans-serif;
}

.service-items {
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem; /* Match education text size (approx) */
    color: #475569;
    line-height: 1.5;
}

/* Honors Section Styling */
.honor-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 1.5rem;
    align-items: baseline;
    margin-bottom: 1.5rem;
}

.honor-year {
    font-family: 'Courier New', Courier, monospace;
    font-weight: 700;
    font-size: 0.9rem;
    color: #d4a562; /* accent */
    text-align: right;
    white-space: nowrap;
}

.honor-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b; /* primary */
}

/* Publication Thumbnail & Layout */
.pub-content-wrapper {
    width: 100%;
    flex: 1 1 auto;
}

.pub-list-item.with-thumbnail-expanded {
    display: flex;
}

.pub-thumbnail-box {
    width: 280px;
    flex-shrink: 0;
    order: -1;
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: none;
    padding: 0.35rem;
}

.pub-thumbnail-box img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    object-fit: contain;
    background: #ffffff;
}

.pub-venue-inline-tag {
    padding: 0.14rem 0.52rem;
    font-size: 0.69rem;
    letter-spacing: 0.015em;
    box-shadow: none;
}

.pub-list-item.with-thumbnail-expanded .pub-content-wrapper {
    flex-grow: 1;
}

/* Adjust text spacing in expanded mode */
.pub-list-item.with-thumbnail-expanded .pub-line-1 {
    margin-bottom: 0.45rem;
}

.pub-list-item.with-thumbnail-expanded .pub-title-text {
    font-size: 1.08rem;
}

.pub-line-4 {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 0.7rem;
    padding-top: 0.2rem;
}

.pub-footer-row {
    width: 100%;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
}

.pub-action-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    align-items: center;
    flex: 1 1 auto;
}

.pub-logo-wrap {
    width: 92px;
    height: 34px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    flex: 0 0 auto;
    margin-left: auto;
}

.pub-venue-logo {
    max-width: 88px;
    max-height: 30px;
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: right bottom;
    display: block;
    opacity: 0.92;
}

.pub-btn-preview {
    cursor: pointer;
}

.pub-btn-preview.active {
    background-color: #1e293b;
    color: white;
    border-color: #1e293b;
}

/* Make sure mobile layout stacks */
@media (max-width: 520px) {
    .contact-panels {
        flex-direction: column;
    }

    .contact-panel {
        min-height: auto;
    }

    .content-container {
        padding-top: 5rem;
    }

    .pub-list-item,
    .pub-list-item.with-thumbnail-expanded {
        flex-direction: column;
    }
    .pub-thumbnail-box {
        width: 100%;
        max-width: none;
    }

    .pub-footer-row {
        flex-direction: column;
        align-items: stretch;
    }

    .pub-logo-wrap {
        margin-left: 0;
        align-self: flex-end;
    }

    .publication-filters {
        flex-direction: column;
        align-items: stretch;
    }
}