/* ===================================
   SQL Week Recife Conference - CSS
   =================================== */

/* Reset e Variáveis */
:root {
    /* Cores da Logo */
    --primary-blue: #1e3a5f;        /* Azul marinho do círculo */
    --secondary-blue: #87ceeb;      /* Azul claro do céu */
    --accent-yellow: #ffd700;       /* Amarelo do sol */
    --accent-red: #e74c3c;         /* Vermelho */
    --accent-green: #27ae60;       /* Verde */
    --accent-purple: #9b59b6;      /* Roxo */
    --accent-orange: #f39c12;      /* Laranja */
    
    /* Cores Base */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --black: #000000;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    --gradient-accent: linear-gradient(135deg, var(--accent-yellow), var(--accent-orange));
    --gradient-rainbow: linear-gradient(90deg, 
        var(--accent-red), 
        var(--accent-orange), 
        var(--accent-yellow), 
        var(--accent-green), 
        var(--secondary-blue), 
        var(--accent-purple)
    );
    
    /* Tipografia */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-secondary: 'Georgia', serif;
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.2);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header & Navbar */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.logo img {
    height: 60px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--dark-gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary-blue);
    background: var(--light-gray);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-normal);
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--secondary-blue);
    color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.05;
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: var(--gradient-rainbow);
    border-radius: 50%;
    opacity: 0.1;
    filter: blur(100px);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-badge {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.gradient-text {
    background: var(--gradient-rainbow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.hero-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-blue);
    font-weight: 500;
}

.info-item i {
    font-size: 1.2rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

/* Hero Card */
.hero-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-rainbow);
}

.stats {
    display: grid;
    gap: var(--spacing-md);
}

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

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--gray);
    margin-top: var(--spacing-xs);
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
}

/* Edition Selector */
.edition-selector-section {
    background: var(--gradient-primary);
    padding: var(--spacing-md) 0;
    margin-top: 80px;
}

.edition-selector-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.edition-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--white);
    font-weight: 600;
    font-size: 1.1rem;
}

.edition-label i {
    font-size: 1.3rem;
}

.edition-select {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-blue);
    background: var(--white);
    border: 3px solid var(--accent-yellow);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    min-width: 300px;
}

.edition-select:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.edition-select:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.2);
}

.edition-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    color: var(--white);
}

.edition-date {
    font-weight: 600;
    font-size: 1rem;
}

.edition-theme {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-blue);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Sobre Section */
.sobre {
    background: var(--light-gray);
}

.sobre-content {
    max-width: 100%;
}

.sobre-text-column {
    width: 100%;
}

.edition-summary {
    margin-bottom: var(--spacing-lg);
}

.edition-summary p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

/* Features and Logo Layout */
.features-and-logo {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
}

.features-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.logo-container-inline {
    flex-shrink: 0;
    width: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.event-logo-inline {
    width: 100%;
    max-width: 350px;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    text-align: center; /* ← Centraliza tudo */
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md) auto; /* Centraliza */
    box-shadow: var(--shadow-md);
}

.feature-icon i {
    font-size: 2rem; /* Ícone maior */
    color: var(--white);
}

.feature-card h3 {
    color: var(--primary-blue);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* Logo Container */
.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.event-logo {
    width: 100%;
    max-width: 400px;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

/* Edition Summary */
.edition-summary {
    margin-bottom: var(--spacing-lg);
}

.edition-summary p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

/* Video Wrapper - REMOVIDO, mantido para compatibilidade */
.video-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.preview-image {
    width: 100%;
    display: block;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.play-button i {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-left: 5px;
}

/* Schedule */
.schedule-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.day-schedule {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.day-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.day-header h3 {
    font-size: 1.5rem;
}

/*
.session-list {
    padding: var(--spacing-md);
}*/

.session-list {
    display: none; /* Escondido por padrão */
}

.session-list.show {
    display: block;
    padding: var(--spacing-md); /* ← FALTOU ISSO */
}

.day-header {
    cursor: pointer;
    position: relative;
}

/* Ícone de seta */
.day-header::after {
    content: '▼';
    position: absolute;
    right: 20px;
    transition: transform 0.3s;
}

.day-schedule.active .day-header::after {
    transform: rotate(180deg); /* Seta pra cima */
}

.session-item {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--light-gray);
    transition: var(--transition-fast);
}

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

.session-item:hover {
    background: var(--light-gray);
    border-radius: var(--radius-sm);
}

.session-time {
    font-weight: 600;
    color: var(--primary-blue);
}

.session-details h4 {
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xs);
}

.session-details p {
    color: var(--gray);
    font-size: 0.9rem;
}

.session-speaker {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--gray);
    font-size: 0.9rem;
}

/* Speakers Grid */
.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.speaker-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    text-align: center;
}

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

.speaker-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background: var(--gradient-primary);
}

.speaker-info {
    padding: var(--spacing-md);
}

.speaker-info h3 {
    color: var(--primary-blue);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.speaker-info p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.speaker-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.speaker-social a {
    width: 35px;
    height: 35px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    transition: var(--transition-fast);
}

.speaker-social a:hover {
    background: var(--primary-blue);
    color: var(--white);
}

/* Videos Section */
.videos {
    background: var(--light-gray);
}

/* Swiper Carousel */
.videosSwiper {
    width: 100%;
    padding: var(--spacing-md) 0 var(--spacing-xl);
}

.videosSwiper .swiper-slide {
    height: auto;
}

/* Video Card */
.video-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    height: 100%;
    min-height: 460px;
    display: flex;
    flex-direction: column;
}

.video-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.video-card-header {
    background: var(--gradient-primary);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
}

.video-icon-large {
    font-size: 4rem;
    color: var(--white);
}

.video-card-body {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    min-height: 0;
}

.video-edition {
    display: inline-block;
    background: var(--accent-yellow);
    color: var(--primary-blue);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 600;
    align-self: flex-start;
    flex-shrink: 0;
}

.video-card-body h3 {
    color: var(--primary-blue);
    font-size: 1.1rem;
    line-height: 1.4;
    margin: 0;
    flex-shrink: 0;
}

.video-meta-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--gray);
    font-size: 0.85rem;
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--light-gray);
    flex-shrink: 0;
}

.video-meta-info span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    line-height: 1.5;
    min-height: 20px;
}

.video-meta-info i {
    color: var(--primary-blue);
    width: 20px;
    flex-shrink: 0;
}

.video-card-footer {
    padding: var(--spacing-md);
    background: var(--light-gray);
    text-align: center;
}

.video-link-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-blue);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
}

.video-link-btn:hover {
    background: var(--accent-orange);
    transform: scale(1.05);
}

/* Swiper Navigation */
.videosSwiper .swiper-button-next,
.videosSwiper .swiper-button-prev {
    color: var(--primary-blue);
    background: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    z-index: 100;
    cursor: pointer;
}

.videosSwiper .swiper-button-next:hover,
.videosSwiper .swiper-button-prev:hover {
    background: var(--accent-yellow);
    transform: scale(1.1);
}

.videosSwiper .swiper-button-next:after,
.videosSwiper .swiper-button-prev:after {
    font-size: 1.2rem;
}

/* Swiper Pagination */
.videosSwiper .swiper-pagination-bullet {
    background: var(--primary-blue);
    opacity: 0.3;
}

.videosSwiper .swiper-pagination-bullet-active {
    opacity: 1;
    background: var(--accent-orange);
}

/* Inscrição Section */
.inscricao {
    background: var(--gradient-primary);
    color: var(--white);
}

.inscricao-card {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

.inscricao-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.inscricao-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.benefits-list {
    margin-bottom: var(--spacing-lg);
}

.benefits-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: 1.1rem;
}

.benefits-list i {
    color: var(--accent-yellow);
}

.inscricao-image img {
    width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* Contato Section */
.contato-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

.info-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.info-card i {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.info-card h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.info-card p {
    color: var(--gray);
}

.social-links h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.social-icons a {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    transition: var(--transition-normal);
}

.social-icons a:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-md);
}

/* Contact Form */
.contato-form {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo img {
    height: 80px;
    margin-bottom: var(--spacing-sm);
}

.footer-logo p {
    opacity: 0.8;
}

.footer-links h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-links ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    opacity: 0.8;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 5px;
}

.footer-social h4 {
    margin-bottom: var(--spacing-md);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.8;
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    background: var(--secondary-blue);
    color: var(--primary-blue);
}

/* Utilities */
.text-center {
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-content,
    .sobre-content,
    .inscricao-card,
    .contato-content,
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .speakers-grid {
        grid-template-columns: 1fr;
    }
    
    .session-item {
        grid-template-columns: 1fr;
    }
    
    /* Edition Selector Mobile */
    .edition-selector-wrapper {
        flex-direction: column;
        text-align: center;
    }
    
    .edition-select {
        min-width: 100%;
    }
    
    /* Videos Mobile */
    .video-item {
        flex-direction: column;
        text-align: center;
    }
    
    .video-link {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn-large {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
    }
    
    .video-icon {
        width: 60px;
        height: 60px;
    }
    
    .video-icon i {
        font-size: 2rem;
    }
    
    /* Features and Logo Mobile - DENTRO do media query */
    .features-and-logo {
        flex-direction: column !important;
    }

    .logo-container-inline {
        width: 100% !important;
        max-width: 300px !important;
        margin: 0 auto !important;
    }

    /* Video Cards Mobile */
    .video-card-header {
        min-height: 120px !important;
    }

    .video-icon-large {
        font-size: 3rem !important;
    }
}