/* Import fonts */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Source+Sans+Pro:wght@400;500;600;700&display=swap');

/* CSS Custom Properties for Colors */
:root {
    /* CT2026 Colors */
    --ct26-primary-dark: #2C2C2C;
    --ct26-primary-sage: #7A8471;
    --ct26-primary-light: #F2F2F2;
    --ct26-secondary-tan: #C7956D;
    --ct26-secondary-blue: #6B8CAE;
    --ct26-secondary-yellow: #E6C866;
    
    /* DV60 Colors */
    --dv60-primary-dark: #1B4332;
    --dv60-primary-teal: #40826D;
    --dv60-primary-light: #D8F3E3;
    
    /* Shared Neutral Colors */
    --neutral-lightest: #E7E5E4;
    --neutral-light: #D5D3D1;
    --neutral-dark: #292524;
    
    /* Typography */
    --font-display: 'JetBrains Mono', monospace;
    --font-body: 'Source Sans Pro', sans-serif;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--ct26-primary-dark);
    background-color: var(--ct26-primary-light);
    font-size: 16px;
}


a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Header */
.header {
    padding: 2rem 1rem 1rem;
    text-align: center;
    background-color: var(--ct26-primary-light);
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 0;
    margin-bottom: 1.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.logo-ct26 {
    width: 150px;
    height: 150px;
    flex-shrink: 0;
}

.logo-dv60 {
    width: 150px;
    height: 75px;
    flex-shrink: 0;
}

.main-title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--ct26-primary-dark);
}

.subtitle {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    margin-bottom: 0.25rem;
}

.location-date {
    font-size: clamp(0.9rem, 2vw, 1rem);
    margin-bottom: 0.75rem;
}

.venue-text {
    font-size: clamp(0.85rem, 1.8vw, 0.95rem);
    color: var(--ct26-primary-dark);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

.venue-link {
    font-weight: 500;
}

/* Main Content */
.main-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Section Styling */
.section {
    margin-bottom: 3rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--ct26-primary-dark);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--ct26-secondary-tan);
}

.section h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--ct26-primary-dark);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--ct26-secondary-tan);
    margin-top: 3rem;
}

.section h2:first-child {
    margin-top: 0;
}

.section p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.section ul, .section ol {
    margin-bottom: 1.2rem;
    padding-left: 1.5rem;
}

.section li {
    margin-bottom: 0.25rem;
    line-height: 1.6;
}

.section p a, .section li a {
    text-decoration: underline;
    font-weight: 500;
    transition: color 0.2s ease;
}

.section p a:hover, .section li a:hover {
    color: var(--ct26-secondary-blue);
}

@media (min-width: 768px) {
    .section p {
        margin-bottom: 0.8rem;
    }
}

.section p:last-child {
    margin-bottom: 0;
}

.dv60-section .section-title {
    border-bottom-color: var(--dv60-primary-teal);
}

.dv60-section .section h2 {
    border-bottom-color: var(--dv60-primary-teal);
}

/* Conference Sections */
.conference-section {
    background: white;
    padding: 2rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--ct26-secondary-tan);
    box-shadow: 0 2px 8px rgba(44, 44, 44, 0.08);
}

.dv60-section .conference-section {
    border-left-color: var(--dv60-primary-teal);
}

.conference-date {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}



.subsection-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--ct26-primary-dark);
    margin-bottom: 1rem;
}



/* Scientific Committee */
.committee-section {
    background: var(--neutral-lightest);
    padding: 2rem;
    border-left: 4px solid var(--ct26-primary-dark);
    box-shadow: 0 2px 8px rgba(44, 44, 44, 0.08);
}

.committee-list {
    display: grid;
    gap: 0.25rem;
}

.committee-item {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    padding: 0;
}

.committee-link {
    font-weight: 500;
    transition: color 0.3s ease;
    flex-shrink: 0;
}

.committee-affiliation {
    font-style: italic;
    font-size: max(0.95rem, 14px);
}

@media (max-width: 480px) and (orientation: landscape) {
    .committee-affiliation,
    .speaker-affiliation {
        font-size: max(0.95rem, 3.5vw, 14px);
    }
}

/* ICM Section */
.icm-section {
    background: var(--ct26-secondary-yellow);
    padding: 1.5rem;
    text-align: center;
    border-radius: 4px;
    margin-top: 2rem;
}

.icm-text {
    font-size: 1.05rem;
    color: var(--ct26-primary-dark);
    margin: 0;
    font-weight: 500;
}

.icm-link {
    font-weight: 600;
}

/* Footer */
.footer {
    text-align: center;
    padding: 1rem;
    font-size: max(0.9rem, 14px);
    border-top: 1px solid var(--neutral-light);
    margin-top: 2rem;
}

.footer a {
    font-weight: 500;
}

/* Registration Section */
.registration-section {
    padding: 2rem 1.5rem;
    text-align: center;
    background-color: var(--ct26-primary-light);
}

.registration-btn {
    background-color: var(--ct26-secondary-blue);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    font-family: var(--font-body);
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 2px 8px rgba(107, 140, 174, 0.3);
}

.registration-btn:hover:not(:disabled) {
    background-color: var(--ct26-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(107, 140, 174, 0.4);
}

.registration-btn--disabled {
    background-color: var(--neutral-light);
    color: var(--neutral-dark);
    cursor: not-allowed;
    box-shadow: none;
}

.registration-btn--disabled:hover {
    transform: none;
    box-shadow: none;
}

/* About Conferences Section */
.about-conferences {
    margin-bottom: 3rem;
}

.about-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--ct26-primary-dark);
    margin-bottom: 2rem;
    text-align: center;
}

.conferences-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.conference-card {
    background: white;
    padding: 2rem;
    border-left: 4px solid var(--ct26-secondary-tan);
    box-shadow: 0 2px 8px rgba(44, 44, 44, 0.08);
    border-radius: 0 4px 4px 0;
}

.conference-card.dv60-card {
    border-left-color: var(--dv60-primary-teal);
}

.conference-card-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--ct26-primary-dark);
    margin-bottom: 0.5rem;
}

.conference-card-title a {
    color: inherit;
    text-decoration: none;
}

.conference-card-title a:hover {
    text-decoration: underline;
}

.conference-card .conference-date {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.conference-description {
    color: var(--ct26-primary-dark);
    line-height: 1.6;
    margin: 0;
}

/* Support Section */
.support-section {
    margin-bottom: 3rem;
}

.support-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.support-content p {
    margin-bottom: 1.5rem;
    color: var(--ct26-primary-dark);
    font-size: 1.05rem;
}

.jhu-logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.jhu-logo {
    height: 120px;
    width: auto;
    max-width: 66%;
}

/* Speakers Grid */
.speakers-grid {
    display: grid;
    gap: 0.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.speaker-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
}



.speaker-image {
    flex-shrink: 0;
}

.speaker-photo {
    width: 100px;
    height: 125px;
    border-radius: 6px;
    object-fit: cover;
    border: 2px solid var(--neutral-lightest);
}

.speaker-info {
    flex: 1;
    min-width: 0;
}

.speaker-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    line-height: 1.3;
}

.speaker-link {
    transition: color 0.3s ease;
}

.speaker-affiliation {
    font-size: max(0.95rem, 14px);
    font-style: italic;
    margin: 0;
    line-height: 1.3;
}


@media (min-width: 769px) {
    .speakers-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem 2rem;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .registration-section {
        padding: 1.5rem 1rem;
    }
    
    .registration-btn {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
    
    .conferences-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .conference-card {
        padding: 1.5rem;
    }
    
    .about-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .jhu-logo {
        height: auto;
        width: 100%;
        max-width: 100%;
    }
    
    .speakers-grid {
        gap: 0.25rem;
        grid-template-columns: 1fr !important;
    }
    
    .speaker-item {
        padding: 0.25rem 0;
        gap: 0.75rem;
    }
    
    .speaker-photo {
        width: 80px;
        height: 100px;
    }
    
    .speaker-name {
        font-size: 1rem;
    }
    
    .speaker-affiliation {
        font-size: max(0.9rem, 14px);
    }
    
    .committee-affiliation {
        font-size: max(0.9rem, 14px);
    }
}

/* DV60 Theme Overrides */
.dv60-theme {
    color: var(--dv60-primary-dark);
    background-color: var(--dv60-primary-light);
}

.dv60-theme .header {
    background-color: var(--dv60-primary-light);
}

.dv60-theme .main-title {
    color: var(--dv60-primary-dark);
}

.dv60-theme .section-title {
    color: var(--dv60-primary-dark);
    border-bottom-color: var(--dv60-primary-teal);
}

.dv60-theme .conference-section {
    border-left-color: var(--dv60-primary-teal);
}

.dv60-theme .committee-section {
    border-left-color: var(--dv60-primary-dark);
}

.dv60-theme .icm-section {
    background: var(--dv60-primary-dark);
}

.dv60-theme .icm-text {
    color: var(--ct26-primary-light);
}

.dv60-theme .icm-link {
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo-container {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }
    
    .logo-ct26 {
        width: 120px;
        height: 120px;
    }
    
    .logo-dv60 {
        width: 120px;
        height: 60px;
    }

    .main-content {
        padding: 1.5rem 1rem;
    }

    .conference-section, .committee-section {
        padding: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }



    .committee-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.05rem;
    }
    
    .committee-list {
        line-height: 1.2;
    }
    
    .committee-affiliation {
        margin-left: 0.5rem;
    }
}

@media (max-width: 768px) and (orientation: landscape) {
    .committee-affiliation {
        font-size: max(1rem, 16px);
    }
    
    .speaker-affiliation {
        font-size: max(1rem, 16px);
    }
    
    .footer {
        font-size: max(1rem, 16px);
    }
    
    .committee-list {
        line-height: 1.5;
        gap: 0.4rem;
    }
    
    .committee-item {
        padding: 0.3rem 0;
    }
    
    .committee-link {
        font-size: 1.05rem;
        font-weight: 600;
    }
}