/* Base Styles */
:root {
    /* Cores Primárias */
    --primary-color: #00437a;
    --primary-dark: #002f57;
    --primary-light: #1a5b95;

    /* Cores Secundárias (Amarelo) */
    --secondary-color: #fcc613;
    --secondary-dark: #e0ac00;
    --secondary-light: #fdd85d;

    /* Cores de Destaque e Neutras */
    --accent-color: #016f86;
    --light-gray: #f8f8f8;
    --light-gray-2: #f1f1f1;
    --medium-gray: #e0e0e0;
    --dark-gray: #333333;
    --white: #ffffff;
    --black: #1a1a1a;

    /* Cores de Texto */
    --text-color: #2c3e50;
    --text-light: #5a6a7e;

    /* Cores de Marcas Sociais */
    --linkedin-color: #0077b5;
    --twitter-color: #1da1f2;
    --instagram-gradient: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);

    /* UI e Layout */
    --border-color: #e5e5e5;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --container-padding: 0 15px;

    /* Cores para Overlay com transparência */
    --primary-color-overlay: rgba(0, 67, 122, 0.8); /* Azul com alfa - Mantido */
    --secondary-color-overlay: rgba(252, 198, 19, 0.8); /* Amarelo com alfa (substituindo o vermelho com alfa) */
}
/* General Body Styles */ 
body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--white); 
    color: var(--text-color); 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    -webkit-font-smoothing: antialiased; 
    -moz-osx-font-smoothing: grayscale; 
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 1rem;
    line-height: 1.3;
    font-weight: 700;
}

p {
    margin: 0 0 1rem;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

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

.lead-text {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 60px;
    height: 60px;
    border: 5px solid var(--medium-gray);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    border-left-color: var(--secondary-color); /* Agora usará o amarelo */
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 25px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
    line-height: 1.4;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.btn i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.btn:hover i {
    transform: translateX(3px);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(0, 67, 122, 0.2); /* Sombra do botão primário (azul) */
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 67, 122, 0.3);
}

.btn-secondary {
    background-color: var(--secondary-color); /* Agora usará o amarelo */
    color: var(--dark-gray); /* Texto escuro para melhor contraste com amarelo */
    box-shadow: 0 4px 10px rgba(252, 198, 19, 0.2); /* Sombra amarela (RGB de #fcc613) */
}

.btn-secondary:hover {
    background-color: var(--secondary-dark); /* Amarelo escuro */
    color: var(--black); /* Texto mais escuro para contraste */
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(252, 198, 19, 0.3); /* Sombra amarela mais forte */
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-light {
    background-color: var(--white);
    color: var(--primary-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.btn-light:hover {
    background-color: var(--light-gray);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

.btn-lg {
    padding: 15px 35px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
    display: flex;
}

/* Navbar Styles */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 998;
    background-color: rgba(255, 255, 255, 0.95);
    padding: 15px 0;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.90);
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 25px;
    margin: 0 auto;
}

.nav-link {
    color: var(--text-color);
    font-weight: 600;
    position: relative;
    transition: var(--transition);
    font-size: 0.95rem;
    padding: 5px 0;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    bottom: 0;
    left: 0;
    transition: var(--transition);
}

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

.nav-btn {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
}

.nav-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 67, 122, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1000;
}

.hamburger span {
    height: 3px;
    width: 25px;
    background: var(--text-color);
    margin: 3px 0;
    display: block;
    transition: var(--transition);
    border-radius: 10px;
}

/* Hero Section Styles */
.hero {
    height: 100vh;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.6)), url('img_hero/hero.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: var(--white);
    position: relative;
    padding: 120px 0 60px; /* Ajustado para navbar e announcement bar */
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color-overlay), transparent); /* Usando variável para consistência */
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.event-label {
    display: inline-block;
    background-color: var(--secondary-color); /* Agora usará o amarelo */
    color: var(--dark-gray); /* Texto escuro para contraste com amarelo */
    padding: 5px 15px;
    border-radius: 50px;
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

.hero h1 span {
    color: #A0B2C2; 
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 2rem;
}

.divider {
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color); /* Agora usará o amarelo */
    margin: 1rem 0 1.5rem;
}

.tagline {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    margin-top: 1rem;
}
.hero .cta-buttons .btn-primary {
    white-space: nowrap;
}

/* Countdown in Hero */
.countdown-container {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 320px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.countdown-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    font-weight: 600;
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.countdown-header i {
    font-size: 1.2rem;
}

.countdown {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
}

.countdown-item {
    text-align: center;
    width: 22%;
}

.countdown-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 5px;
    color: var(--white);
}

.countdown-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.venue {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    opacity: 0.9;
}

.venue i {
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.hero-flags {
    position: absolute;
    bottom: 30px;
    right: 30px;
    z-index: 2;
    display: flex;
    gap: 15px;
}

.flag-brazil, .flag-canada {
    width: 60px;
    height: 40px;
    border-radius: 5px;
    box-shadow: var(--shadow-sm);
}

.flag-brazil {
    background: linear-gradient(to bottom, #009c3b 33%, #ffdf00 33%, #ffdf00 66%, #009c3b 66%);
    position: relative;
    overflow: hidden;
}

.flag-brazil::before {
    content: '';
    position: absolute;
    width: 30px;
    height: 30px;
    background-color: #002776;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.flag-brazil::after {
    content: '';
    position: absolute;
    width: 28px;
    height: 28px;
    background-color: #ffdf00;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(10deg);
    z-index: 2;
    clip-path: ellipse(50% 45% at 50% 50%);
}

.flag-canada {
    background-color: var(--white);
    position: relative;
}

.flag-canada::before, .flag-canada::after {
    content: '';
    position: absolute;
    top: 0;
    height: 100%;
    width: 25%;
    background-color: var(--secondary-color); /* Vermelho da bandeira do Canadá alterado para o novo amarelo */
}

.flag-canada::before {
    left: 0;
}

.flag-canada::after {
    right: 0;
}

.flag-canada span { /* Maple Leaf */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--secondary-color); /* Cor da Maple Leaf alterada para o novo amarelo */
    font-size: 1.5rem; /* Considerar usar um SVG ou um caractere de folha se disponível */
    z-index: 1;
    /* Para uma representação mais fiel da folha, um SVG seria ideal. 
       Como fallback, mantemos a cor, mas a forma não será a folha. */
}


/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-subtitle {
    display: inline-block;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 2px;
    color: var(--secondary-color); /* Agora usará o amarelo */
    font-weight: 700;
    margin-bottom: 10px;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    position: relative;
}

.section-lead {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 1.5rem auto 0;
    color: var(--text-light);
}

.underline {
    height: 3px;
    width: 70px;
    background: var(--secondary-color); /* Agora usará o amarelo */
    margin: 0 auto;
}

/* About Section */
.about {
    padding: 7rem 0;
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text {
    position: relative;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 2.5rem 0;
}

.stat-item {
    text-align: center;
    padding: 15px;
    border-radius: var(--radius-md);
    background-color: var(--light-gray);
    transition: var(--transition);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 5px;
    line-height: 1;
}

.stat-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
}

.about-image {
    position: relative;
    height: 450px;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.image-badge {
    position: absolute;
    bottom: 30px;
    right: 30px;
    background-color: var(--secondary-color); /* Agora usará o amarelo */
    color: var(--dark-gray); /* Texto escuro para contraste */
    border-radius: var(--radius-md);
    padding: 15px;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.badge-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.2;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    height: 80px;
    width: 80px;
    background-color: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 2rem;
    transition: var(--transition);
}

.feature-item:hover .feature-icon {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 5px 15px rgba(0, 67, 122, 0.3);
}

.feature-item h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Organizers Section */
.organizers {
    padding: 7rem 0;
    background-color: var(--white);
}

.organizers-content {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.organizer-item {
    background-color: var(--light-gray);
    border-radius: var(--radius-md);
    padding: 25px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.organizer-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.organizer-item h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.organizer-item h3 a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
    text-decoration-thickness: 2px;
}

.logo-container {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: auto;
    padding: 15px;
    background-color: var(--white);
    border-radius: var(--radius-sm);
}

.logo-container img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
}

/* Speakers Section */
.speakers {
    padding: 7rem 0;
    background-color: var(--light-gray-2);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 3rem;
}

.speaker-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.speaker-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.speaker-header {
    position: relative;
}

.speaker-image {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.speaker-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
}

.speaker-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.speaker-social {
    position: absolute;
    display: flex;
    gap: 10px;
    bottom: 15px;
    right: 15px;
    z-index: 2;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(3px);
    color: var(--white);
}

/* Cores específicas de ícones sociais mantidas, exceto Instagram que usará a nova secundária */
.social-icon.linkedin {
    background-color: var(--linkedin-color);
}

.social-icon.twitter {
    background-color: var(--twitter-color);
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    background-color: var(--white);
    color: var(--primary-color); /* Cor padrão de hover, exceto para Instagram */
}

.social-icon.instagram:hover {
    background: var(--instagram-gradient);
    color: var(--white);
}

.social-icon.disabled {
    background-color: #b7b7b7;
    cursor: default;
    pointer-events: none;
    opacity: 0.7;
}

.speaker-info {
    padding: 25px;
}

.speaker-info h3 {
    margin-bottom: 5px;
    color: var(--primary-color);
    font-size: 1.3rem;
}

.speaker-title {
    color: var(--secondary-color); /* Agora usará o amarelo */
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.speaker-university {
    background-color: var(--light-gray);
    color: var(--text-light);
    font-size: 0.85rem;
    padding: 5px 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    display: inline-block;
}

.speaker-bio {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* Schedule Section */
.schedule {
    padding: 7rem 0;
    background-color: var(--white);
}

.schedule-download {
    margin-top: 20px;
}

.schedule-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 10px;
}

.tab-btn {
    padding: 15px 25px;
    background-color: var(--light-gray);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    color: var(--text-color);
    position: relative;
    overflow: hidden;
}

.tab-btn span {
    display: block;
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 3px;
}

.tab-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
}

.tab-btn.active span {
    color: rgba(255, 255, 255, 0.8);
}

.tab-btn::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 3px;
    background: var(--secondary-color); /* Agora usará o amarelo */
    bottom: 0;
    left: 0;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-content {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 0;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.day-schedule {
    display: none;
}

.day-schedule.active {
    display: block;
}

.schedule-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 20px 30px;
    border-top-left-radius: var(--radius-lg);
    border-top-right-radius: var(--radius-lg);
}

.day-date {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 600;
}

.day-date i {
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.schedule-timeline {
    padding: 40px 30px;
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: 4px solid var(--white);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 9px;
    top: 20px;
    bottom: -40px;
    width: 2px;
    background-color: var(--primary-color);
    opacity: 0.3;
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-content {
    background-color: var(--light-gray);
    padding: 20px 25px;
    border-radius: var(--radius-md);
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 15px;
    width: 16px;
    height: 16px;
    background-color: var(--light-gray);
    transform: rotate(45deg);
}

.time {
    display: inline-block;
    font-weight: 700;
    color: var(--white);
    background-color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.event h4 {
    margin-bottom: 10px;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.event p {
    margin-bottom: 15px;
    color: var(--text-light);
}

.event strong {
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.event-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.tag {
    background-color: rgba(0, 67, 122, 0.1); /* Tag com base no azul primário */
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 50px;
}

.speakers-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.speaker-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--white);
    padding: 5px 12px 5px 5px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.speaker-tag img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
}

.lunch .time {
    background-color: var(--secondary-color); /* Agora usará o amarelo */
    color: var(--dark-gray); /* Texto escuro para contraste */
}

.event-details {
    margin: 15px 0;
    padding-left: 20px;
    list-style-type: disc;
    color: var(--text-light);
}

.event-details li {
    margin-bottom: 8px;
}

/* Parallax Section */
.parallax-section {
    height: 500px;
    background: url('https://images.unsplash.com/photo-1529156069898-49953e39b3ac?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80') no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.parallax-section .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(var(--primary-color-overlay), var(--secondary-color-overlay)); /* Usando as novas variáveis com alfa */
    z-index: 1;
}

.parallax-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.parallax-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.parallax-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Location Section */
.location {
    padding: 7rem 0;
    background-color: var(--light-gray-2);
}

.location-details {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px;
    align-items: stretch;
}

.location-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.address-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-md);
    display: flex;
    margin-bottom: 30px;
    transition: var(--transition);
}

.address-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.address-icon {
    color: var(--secondary-color); /* Agora usará o amarelo */
    font-size: 2.5rem;
    margin-right: 25px;
}

.address-content h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-family: 'Playfair Display', serif;
}

.address-line {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
}

.address-line i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.location-cta {
    margin-top: 25px;
}

.location-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: auto;
}

.feature {
    background-color: var(--white);
    border-radius: var(--radius-md);
    padding: 15px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.feature span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
}

.location-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    height: 100%;
    min-height: 400px;
}

.location-map iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* Participate Section */
.participate {
    padding: 7rem 0;
    background-color: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 3rem;
    justify-content: center;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background-color: var(--light-gray);
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background-color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.benefit-item:hover .benefit-icon {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 5px 15px rgba(0, 67, 122, 0.3);
}

.benefit-content h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.participation-cta {
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
    box-shadow: var(--shadow-sm);
}

.participation-cta h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.participation-cta ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.participation-cta li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.participation-cta li i {
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.student-highlight {
    background-color: var(--white);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow-md);
    border-left: 5px solid var(--secondary-color); /* Agora usará o amarelo */
}

.student-icon {
    width: 60px;
    height: 60px;
    background-color: var(--secondary-color); /* Agora usará o amarelo */
    color: var(--dark-gray); /* Texto escuro para contraste */
    font-size: 1.8rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.student-text h4 {
    color: var(--secondary-color); /* Agora usará o amarelo */
    margin-bottom: 5px;
}

.student-text p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* Registration Section */
.registration {
    padding: 7rem 0;
    background: linear-gradient(var(--primary-color-overlay), var(--primary-color-overlay)), url('https://images.unsplash.com/photo-1560439514-4e9645039924?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    color: var(--white);
    position: relative;
}

.registration .section-header h2 {
    color: var(--white);
}
.registration .section-header .section-subtitle {
    color: var(--secondary-light); /* Amarelo claro para melhor visibilidade no fundo escuro */
}
.registration .section-header .underline {
    background: var(--secondary-light); /* Amarelo claro */
}

.registration .section-lead {
    color: var(--white);
}


.registration-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.registration-info h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
}

.registration-lead {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.countdown-box {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 30px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.countdown-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    font-weight: 600;
}

.countdown-title i {
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.registration-countdown {
    display: flex;
    justify-content: space-between;
}

.countdown-segment {
    text-align: center;
    width: 30%;
}

.countdown-number {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 5px;
}

.countdown-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.registration-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.detail {
    display: flex;
    align-items: center;
    gap: 15px;
}

.detail i {
    font-size: 1.5rem;
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.cta-card {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.cta-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--white);
}

.cta-card p {
    margin-bottom: 25px;
    opacity: 0.9;
}

.btn-block {
    width: 100%;
    justify-content: center;
    margin-bottom: 20px;
}

.registration-note {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: 10px 15px;
    font-size: 0.9rem;
    border-left: 3px solid var(--secondary-color); /* Agora usará o amarelo */
}

/* Sponsors Section */
.sponsors {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.sponsors-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 30px;
    padding: 30px 0;
}

.sponsor-item {
    padding: 15px;
    background-color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sponsor-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.sponsor-item img {
    max-height: 80%;
    max-width: 80%;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.sponsor-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

/* Footer Styles */
.footer {
    background-color: var(--dark-gray);
    color: var(--white);
}

.footer-top {
    padding: 5rem 0 3rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
}

.footer-logo h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-flags {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.footer-flag {
    width: 30px;
    height: 20px;
    border-radius: 3px;
}

.footer-logo p {
    font-size: 0.9rem;
    color: #ccc;
    margin-bottom: 0;
}

.footer-links h4,
.footer-contact h4,
.footer-subscribe h4 {
    margin-bottom: 1.2rem;
    font-size: 1.2rem;
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    color: #ccc;
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: var(--secondary-color); /* Agora usará o amarelo */
    padding-left: 5px;
}

.footer-contact p {
    margin-bottom: 10px;
    color: #ccc;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-contact i {
    color: var(--secondary-color);
    margin-top: 5px;
}

.social-media {
    display: flex;
    gap: 15px;
    margin-top: 1rem;
}

.social-media a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
    color: var(--white);
}

.social-media a:hover:not(.instagram) {
    background-color: var(--secondary-color);
    color: var(--dark-gray);
    transform: translateY(-3px);
}

.social-media a.instagram:hover {
    background: var(--instagram-gradient);
    color: var(--white);
}


.footer-subscribe p {
    margin-bottom: 15px;
    color: #ccc;
}

.subscribe-form {
    position: relative;
}

.subscribe-form input {
    width: 100%;
    padding: 12px 15px;
    padding-right: 50px;
    border: none;
    border-radius: var(--radius-md);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.subscribe-form input::placeholder {
    color: #ccc;
}

.subscribe-form input:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.15);
}

.subscribe-form button {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    border: none;
    background: none;
    color: var(--white);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
}

.subscribe-form button:hover {
    color: var(--secondary-color); /* Agora usará o amarelo */
}

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 20px 0;
    font-size: 0.9rem;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-bottom p {
    margin: 0;
    color: #999;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

.footer-legal a {
    color: #999;
}

.footer-legal a:hover {
    color: var(--secondary-color); /* Agora usará o amarelo */
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color); /* Agora usará o amarelo */
    color: var(--dark-gray); /* Melhor contraste */
    transform: translateY(-5px);
}

/* Responsive Styles */
@media screen and (max-width: 1200px) {
    .hero h1 {
        font-size: 3.2rem;
    }
    
    .hero-content {
        gap: 40px;
    }
    
    .countdown-container {
        min-width: 280px;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .parallax-text h2 {
        font-size: 2.2rem;
    }
}

@media screen and (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .divider {
        margin: 1rem auto 1.5rem;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .countdown-container {
        width: 100%;
        max-width: 400px;
    }
    
    .about-content,
    .location-details,
    .registration-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        height: 400px;
        margin: 0 auto;
        max-width: 600px;
    }
    
    .participation-cta ul {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .nav-links {
        position: fixed;
        top: 80px; /* Ajustado para navbar */
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px); /* Ajustado */
        background-color: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 50px;
        transition: var(--transition);
        z-index: 997;
        margin: 0;
    }
    
    .nav-links.active {
        left: 0;
        box-shadow: var(--shadow-md);
    }
    
    .hamburger {
        display: flex;
        z-index: 1000;
    }
    
    .hamburger.active span:first-child {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:last-child {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .about-stats {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    
    .address-card {
        flex-direction: column;
        text-align: center;
    }
    
    .address-icon {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .address-line {
        justify-content: center;
    }
    
    .feature {
        padding: 10px;
    }
    
    .student-highlight {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-bottom .container {
        justify-content: center;
        flex-direction: column;
    }
    
    .footer-legal {
        justify-content: center;
    }
    
    .tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 10px;
        gap: 5px;
    }
    
    .tab-btn {
        flex: 0 0 auto;
        padding: 12px 20px;
        white-space: nowrap;
    }
}

@media screen and (max-width: 576px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .event-label {
        margin-bottom: 1rem;
    }
    
    .countdown-item {
        padding: 0 5px;
    }
    
    .countdown-value {
        font-size: 2rem;
    }
    
    .countdown-label {
        font-size: 0.7rem;
    }
    
    .benefit-item,
    .student-highlight {
        flex-direction: column;
        text-align: center;
    }
    
    .benefit-icon,
    .student-icon {
        margin: 0 auto 15px;
    }
    
    .timeline-item {
        padding-left: 30px;
    }
    
    .timeline-content::before {
        display: none;
    }
    
    .location-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .speakers-list {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media screen and (max-width: 480px) {
    .registration-details {
        grid-template-columns: 1fr;
    }
    
    .detail {
        justify-content: center;
    }
}

/* ========== HERO REBOOT (Mantido, pois já usa --secondary-color) ========== */
.hero-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:60px;
    flex-wrap:wrap;
}
.hero-left{flex:1;min-width:280px}
.hero-right{
    display:flex;
    flex-direction:column;
    gap:20px;
    flex:0 0 320px;
}
.hero-title{
    font-family:'Playfair Display',serif;
    font-size:3.2rem;
    line-height:1.15;
    color:var(--white);
    margin-bottom:1.5rem;
}
.hero-title .highlight{color:var(--secondary-color);} /* Usará amarelo */
.hero-subtitle{
    font-size:1.1rem;
    color:var(--white);
    opacity:.9;
    margin-bottom:2rem;
    font-weight:500;
}
.hero-cta{display:flex;gap:20px;flex-wrap:wrap}

/* cartões laterais (Mantido, pois já usa --secondary-color) */
.info-card{
    display:flex;
    align-items:flex-start;
    gap:15px;
    background:rgba(255,255,255,.1);
    backdrop-filter:blur(6px);
    padding:20px;
    border-radius:var(--radius-md);
    border:1px solid rgba(255,255,255,.2);
    color:var(--white);
}
.info-card i{
    font-size:1.6rem;
    color:var(--secondary-color); /* Usará amarelo */
}

/* responsivo (Mantido) */
@media(max-width:992px){
    .hero-inner{flex-direction:column;text-align:center}
    .hero-right{flex-direction:row;justify-content:center;flex-wrap:wrap}
}
@media(max-width:576px){
    .hero-title{font-size:2.4rem}
}

/* Speakers Section - Redesigned for 20 speakers */
.speakers {
    padding: 80px 0;
    background-color: var(--light-gray);
}

/* Speaker Filter Tabs */
.speakers-filter-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.filter-tab-btn {
    padding: 12px 28px;
    background-color: var(--white);
    border: 1px solid var(--medium-gray);
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-light);
    font-size: 0.95rem;
}

.filter-tab-btn:hover:not(.active) {
    background-color: var(--light-gray-2);
    color: var(--primary-color);
}

.filter-tab-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 10px rgba(0, 67, 122, 0.2);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4 speakers per row on large screens */
    gap: 25px;
    margin-top: 40px;
    margin-bottom: 30px;
}

/* Speaker Content Panels */
.speaker-content-panel {
    display: none;
}

.speaker-content-panel.active {
    display: block;
}

.speaker-card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    position: relative;
    cursor: pointer; /* Indica que o card é clicável */
}

.speaker-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.speaker-header {
    position: relative;
}

.speaker-image {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.speaker-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Retornado ao estado original para preencher o espaço */
    transition: transform 0.5s ease;
}

.speaker-card:hover .speaker-image img {
    transform: scale(1.05);
}

.speaker-info {
    padding: 15px;
    text-align: center;
}

.speaker-info h3 {
    font-size: 1rem;
    margin-bottom: 5px;
    font-weight: 600;
}

.speaker-title {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 5px;
}

.speaker-university {
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 500;
    line-height: 1.4; /* Adicionado para controle do espaçamento */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Pagination Controls */
.speakers-pagination {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    gap: 10px;
}

.pagination-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--white);
    border: 1px solid var(--medium-gray);
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination-btn:hover:not(.active) {
    background: var(--light-gray-2);
}

/* Responsive styles for speakers */
@media screen and (max-width: 1200px) {
    .speakers-grid {
        grid-template-columns: repeat(3, 1fr); /* 3 per row on medium-large screens */
    }
}

@media screen and (max-width: 992px) {
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 per row on tablets */
    }
}

@media screen and (max-width: 576px) {
    .speakers-grid {
        grid-template-columns: 1fr; /* 1 per row on mobile */
        gap: 20px;
    }
    
    .speaker-image {
        height: 200px;
    }
}

/* Committee Section Styles */ 
.committee-section { 
    width: 100%; 
    padding: 80px 20px; 
    box-sizing: border-box; 
    background-color: var(--white); 
} 

.container { 
    max-width: 1200px; 
    margin: 0 auto; 
} 

.section-title { 
    text-align: center; 
    margin-bottom: 60px; 
} 

.section-title h2 { 
    font-size: 2.5rem; 
    font-weight: 700; 
    color: var(--primary-dark); 
    margin: 0 0 10px; 
    position: relative; 
    display: inline-block; 
} 

/* Underline effect for the title */ 
.section-title h2::after { 
    content: ''; 
    position: absolute; 
    bottom: -10px; 
    left: 50%; 
    transform: translateX(-50%); 
    width: 60px; 
    height: 4px; 
    background-color: var(--secondary-color); 
    border-radius: 2px; 
} 

.section-title p { 
    font-size: 1.1rem; 
    color: var(--text-light); 
    max-width: 600px; 
    margin: 20px auto 0; 
} 

/* Grid for Member Cards */ 
.committee-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 30px; 
} 

/* Member Card Styles */ 
.member-card { 
    background-color: var(--white); 
    border-radius: var(--radius-lg); 
    box-shadow: var(--shadow-sm); 
    text-align: center; 
    padding: 30px; 
    transition: var(--transition); 
    border: 1px solid var(--border-color); 
    /* For JS animation */ 
    opacity: 0; 
    transform: translateY(30px); 
    transition: opacity 0.6s ease-out, transform 0.6s ease-out; 
} 

.member-card.is-visible { 
    opacity: 1; 
    transform: translateY(0); 
} 

.member-card:hover { 
    transform: translateY(-10px); 
    box-shadow: var(--shadow-lg); 
    border-color: var(--secondary-color); 
} 

.member-card .member-photo { 
    width: 140px; 
    height: 140px; 
    border-radius: 50%; 
    object-fit: cover; 
    margin: 0 auto 20px; 
    border: 5px solid var(--primary-color); 
    transition: var(--transition); 
} 

.member-card:hover .member-photo { 
    border-color: var(--secondary-dark); 
    transform: scale(1.05); 
} 

.member-card .member-name { 
    font-size: 1.4rem; 
    font-weight: 700; 
    color: var(--primary-dark); 
    margin: 0 0 5px; 
} 

.member-card .member-role { 
    font-size: 1rem; 
    font-weight: 500; 
    color: var(--accent-color); 
    margin-bottom: 15px; 
} 

.member-card .member-affiliation { 
    font-size: 0.9rem; 
    color: var(--text-light); 
    margin-bottom: 20px; 
    min-height: 40px; /* Ensures alignment */ 
} 

/* Social Links */ 
.social-links { 
    display: flex; 
    justify-content: center; 
    gap: 15px; 
} 

.social-links a { 
    color: var(--text-light); 
    font-size: 1.2rem; 
    width: 40px; 
    height: 40px; 
    line-height: 40px; 
    text-align: center; 
    border-radius: 50%; 
    background-color: var(--light-gray-2); 
    transition: var(--transition); 
} 

.social-links a:hover { 
    color: var(--white); 
} 

.social-links a.linkedin:hover { 
    background-color: var(--linkedin-color); 
} 
.social-links a.instagram:hover { 
    background: var(--instagram-gradient); 
} 
.social-links a.twitter:hover { 
    background-color: var(--twitter-color); 
}

/* Speaker Modal Styles */
.speaker-modal {
    display: none; /* Oculto por padrão, será ativado via JS */
    position: fixed;
    z-index: 1001; /* Acima de outros elementos como o navbar */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(26, 26, 26, 0.8);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.4s ease;
    align-items: center;
    justify-content: center;
}

.speaker-modal.show {
    display: flex; /* Usamos flex para centralizar */
    opacity: 1;
}

.speaker-modal-content {
    background-color: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 800px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transform: scale(0.95);
    transition: transform 0.4s ease;
}

.speaker-modal.show .speaker-modal-content {
    transform: scale(1);
}

.speaker-modal-close {
    color: var(--text-light);
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1;
    cursor: pointer;
    transition: color 0.3s ease;
}

.speaker-modal-close:hover,
.speaker-modal-close:focus {
    color: var(--primary-color);
    text-decoration: none;
}

.speaker-modal-body {
    text-align: center;
    max-height: 75vh;
    overflow-y: auto;
    padding-right: 15px; /* Espaço para a barra de rolagem */
}

#modal-speaker-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    border: 6px solid var(--light-gray-2);
    box-shadow: var(--shadow-sm);
}

#modal-speaker-name {
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.speaker-modal-body .divider {
    width: 80px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 20px auto 25px;
}

#modal-speaker-bio {
    text-align: left;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-light);
}

/* ==========================================================================
   Publications Section
   ========================================================================== */
   .publications {
    padding: 7rem 0;
    background-color: var(--light-gray);
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.publication-card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.publication-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px 25px 15px;
}

.publication-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: var(--light-gray-2);
    color: var(--primary-color);
    font-size: 1.5rem;
}

.publication-title {
    font-size: 1.2rem;
    color: var(--primary-dark);
    line-height: 1.4;
    font-weight: 600;
    margin: 0;
}

.publication-body {
    padding: 0 25px 20px;
    flex-grow: 1;
}

.publication-authors {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 10px;
}

.publication-excerpt {
    font-size: 0.95rem;
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
}

.publication-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    border-top: 1px solid var(--border-color);
    background-color: var(--light-gray-2);
    border-bottom-left-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.btn-abstract {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    padding: 0;
}

.btn-abstract:hover {
    color: var(--secondary-dark);
    text-decoration: underline;
}

.publication-download {
    color: var(--text-light);
    font-size: 1.2rem;
    transition: var(--transition);
}

.publication-download:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

/* Publication Modal Styles */
.publication-modal {
    display: none;
    position: fixed;
    z-index: 1002; /* Garante que fique acima de outros modais */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(26, 26, 26, 0.85);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.4s ease;
    align-items: center;
    justify-content: center;
}

.publication-modal.show {
    display: flex;
    opacity: 1;
}

.publication-modal-content {
    background-color: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 700px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transform: scale(0.95) translateY(20px);
    transition: transform 0.4s ease;
}

.publication-modal.show .publication-modal-content {
    transform: scale(1) translateY(0);
}

.publication-modal-close {
    color: var(--text-light);
    position: absolute;
    top: 15px;
    right: 25px;
    font-size: 2.5rem;
    font-weight: 300;
    line-height: 1;
    cursor: pointer;
    transition: color 0.3s ease;
}

.publication-modal-close:hover {
    color: var(--primary-color);
}

.publication-modal-body {
    max-height: 70vh;
    overflow-y: auto;
    padding-right: 15px; /* Espaço para a barra de rolagem */
}

.publication-modal-body h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 0 0 10px;
}

.publication-modal-body .authors {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 20px;
}

.publication-modal-body .divider {
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
    margin: 0 0 20px;
}

.publication-modal-body p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 1rem;
}