:root {
  --primary-accent: #1DC0D6;
  --secondary-accent: #F9DD20;
  --primary-dark: #004A6D;
  --highlight-red: #FF0000;
  --success-green: #7FB539;
  --white: #ffffff;
  --light-gray: #f8f9fa;
  --medium-gray: #6c757d;
  --dark-gray: #2c3e50;
  --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.expositores-page {
    padding: 2rem 0;
    min-height: calc(100vh - 140px);
}


.hero-section {
    background: linear-gradient(135deg, var(--primary-accent) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') center/50px 50px;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    opacity: 0.95;
    font-weight: 400;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--white), rgba(255, 255, 255, 0.5));
    margin: 0 auto;
    border-radius: 2px;
}


.content-section {
    padding: 4rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.content-section:last-child {
    border-bottom: none;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--primary-accent);
    font-weight: 500;
    margin-bottom: 1rem;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-accent), var(--primary-dark));
    margin: 0 auto;
    border-radius: 2px;
}


.exhibitors-grid {
    display: grid;
    gap: 3rem;
    margin-bottom: 2rem;
}

.exhibitor-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-heavy);
    overflow: hidden;
    transition: all 0.4s ease;
    border: 1px solid rgba(29, 192, 214, 0.1);
    position: relative;
}

.exhibitor-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-accent), var(--primary-dark));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.exhibitor-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.exhibitor-card:hover::before {
    transform: scaleX(1);
}


.exhibitor-header {
    background: linear-gradient(135deg, var(--light-gray) 0%, #e9ecef 100%);
    padding: 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.institution-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.75rem 1.25rem;
    background: var(--primary-accent);
    color: var(--white);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    width: fit-content;
    box-shadow: 0 4px 15px rgba(29, 192, 214, 0.3);
}

.institution-badge i {
    font-size: 1.1rem;
}

.faculty-info {
    margin-left: 1rem;
}

.faculty-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.program-name {
    font-size: 1rem;
    color: var(--primary-accent);
    font-weight: 500;
    font-style: italic;
}


.presentation-content {
    padding: 2.5rem;
}

.presentation-title {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #f0f0f0;
}

.presentation-title h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.presentation-title .subtitle {
    font-size: 1.1rem;
    color: var(--primary-accent);
    font-weight: 500;
    font-style: italic;
}


.section-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e9ecef;
}

.section-label i {
    color: var(--primary-accent);
    font-size: 1rem;
}


.authors-section {
    margin-bottom: 2.5rem;
}

.authors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.author-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 12px;
    border-left: 4px solid var(--primary-accent);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.author-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
    text-decoration: none;
    color: inherit;
}

.author-item:visited {
    color: inherit;
    text-decoration: none;
}

.author-item:focus {
    outline: 2px solid var(--secondary-accent);
    outline-offset: 2px;
    text-decoration: none;
}

.author-item i {
    color: var(--primary-accent);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.author-item span {
    font-weight: 500;
    color: var(--primary-dark);
    font-size: 0.95rem;
}


.abstract-section {
    margin-bottom: 2rem;
}

.abstract-content {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 15px;
    border-left: 5px solid var(--success-green);
    position: relative;
}

.abstract-content::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 15px;
    font-size: 4rem;
    color: var(--success-green);
    opacity: 0.3;
    font-family: Georgia, serif;
}

.abstract-content p {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    text-align: justify;
}

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


.keywords-section {
    margin-top: 2rem;
}

.keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: flex-start;
}

.keyword {
    background: linear-gradient(135deg, var(--primary-accent) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(29, 192, 214, 0.3);
    transition: all 0.3s ease;
}

.keyword:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(29, 192, 214, 0.4);
}


.info-section {
    background: linear-gradient(135deg, var(--light-gray) 0%, #e9ecef 50%, var(--light-gray) 100%);
    border-radius: 20px;
    margin: 2rem 0;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.info-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-medium);
    text-align: center;
    transition: all 0.4s ease;
    border-top: 4px solid;
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(29, 192, 214, 0.05), transparent);
    transition: left 0.6s ease;
}

.info-card:hover::before {
    left: 100%;
}

.info-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.info-card:nth-child(1) { border-top-color: var(--primary-accent); }
.info-card:nth-child(2) { border-top-color: var(--success-green); }
.info-card:nth-child(3) { border-top-color: var(--secondary-accent); }

.info-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.8rem;
    color: var(--white);
    transition: all 0.3s ease;
}

.info-card:nth-child(1) .info-icon { background: linear-gradient(135deg, var(--primary-accent), var(--primary-dark)); }
.info-card:nth-child(2) .info-icon { background: linear-gradient(135deg, var(--success-green), #20c997); }
.info-card:nth-child(3) .info-icon { background: linear-gradient(135deg, var(--secondary-accent), #e67e22); }

.info-card:hover .info-icon {
    transform: scale(1.1) rotate(5deg);
}

.info-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.info-card p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--medium-gray);
    margin: 0;
}


.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}


@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .content-section {
        padding: 3rem 0;
    }
    
    .exhibitor-card {
        margin-bottom: 2rem;
    }
    
    .exhibitor-header {
        padding: 1.5rem;
    }
    
    .presentation-content {
        padding: 2rem;
    }
    
    .faculty-name {
        font-size: 1.2rem;
    }
    
    .presentation-title h4 {
        font-size: 1.3rem;
    }
    
    .authors-grid {
        grid-template-columns: 1fr;
    }
    
    .abstract-content {
        padding: 1.5rem;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .info-card {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .exhibitor-header {
        padding: 1.25rem;
    }
    
    .presentation-content {
        padding: 1.5rem;
    }
    
    .institution-badge {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
    
    .faculty-name {
        font-size: 1.1rem;
    }
    
    .presentation-title h4 {
        font-size: 1.2rem;
    }
    
    .abstract-content {
        padding: 1.25rem;
    }
    
    .keywords {
        justify-content: center;
    }
    
    .keyword {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
}


@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    .exhibitor-card {
        border: 2px solid var(--primary-dark);
    }
    
    .institution-badge {
        background: var(--primary-dark);
        color: var(--white);
    }
    
    .keyword {
        background: var(--primary-dark);
        color: var(--white);
    }
}


.exhibitor-card:focus-within {
    outline: 3px solid var(--primary-accent);
    outline-offset: 2px;
}