:root {
    --bg-color: #ffffff;
    --bg-dark: #000000;
    --bg-secondary: #f8fafc;
    --navy-blue: #0f172a;
    --accent-color: #0d9488;
    --text-light: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(15, 23, 42, 0.05);
}

/* Fluidez suave ao clicar nos links do menu */
html {
    scroll-behavior: smooth;
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.02);
}

::-webkit-scrollbar-thumb {
    background: rgba(13, 148, 136, 0.5);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(13, 148, 136, 0.8);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--navy-blue);
    background-color: var(--bg-color);
    min-height: 100vh;
}

h1,
h2,
h3,
h4,
h5 {
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--navy-blue);
}

.text-secondary {
    color: var(--text-light) !important;
}

.text-accent {
    color: var(--accent-color) !important;
}

.footer-divider {
    border-color: rgba(255, 255, 255, 0.1);
}

/* Glass Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-weight: 800;
    color: var(--navy-blue) !important;
    letter-spacing: 1px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-light);
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-link.active {
    color: var(--accent-color) !important;
}

/* FIX UX: Menu Mobile Flutuante (não empurra o site e anima suavemente) */
@media (max-width: 991.98px) {
    #navbarNav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        border-bottom: 1px solid var(--glass-border);
        box-shadow: 0 15px 30px rgba(15, 23, 42, 0.1);
        z-index: 1000;
        /* O padding foi removido daqui para o Bootstrap não engasgar ao zerar a altura */
    }
    
    /* O padding foi passado para a lista de links, resolvendo a animação! */
    #navbarNav .navbar-nav {
        padding: 1rem 1.5rem 1.5rem 1.5rem;
    }
}

/* Animação Fluida do Hamburger */
.navbar-toggler {
    border: none;
    padding: 0;
    outline: none;
    box-shadow: none !important;
}

.custom-toggler-icon {
    width: 28px;
    height: 20px;
    position: relative;
    cursor: pointer;
    display: inline-block;
}

.custom-toggler-icon span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--navy-blue);
    border-radius: 2px;
    opacity: 1;
    left: 0;
    transition: all 0.35s ease-in-out;
}

.custom-toggler-icon span:nth-child(1) {
    top: 0px;
}

.custom-toggler-icon span:nth-child(2) {
    top: 9px;
}

.custom-toggler-icon span:nth-child(3) {
    top: 18px;
}

.navbar-toggler:not(.collapsed) .custom-toggler-icon span:nth-child(1) {
    top: 9px;
    transform: rotate(135deg);
    background: var(--accent-color);
}

.navbar-toggler:not(.collapsed) .custom-toggler-icon span:nth-child(2) {
    opacity: 0;
    transform: translateX(-30px);
}

.navbar-toggler:not(.collapsed) .custom-toggler-icon span:nth-child(3) {
    top: 9px;
    transform: rotate(-135deg);
    background: var(--accent-color);
}

/* Glass Cards */
.glass-card {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(15, 23, 42, 0.05);
}

/* Header / Hero Section */
.hero-section {
    padding: 140px 0 100px;
    position: relative;
    background-image: url('../img/img-header.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: 1;
}

/* FIX UX: Desativa o background fixed no celular para consertar o super zoom na imagem */
@media (max-width: 768px) {
    .hero-section {
        background-attachment: scroll;
        background-position: center center;
    }
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: -1;
}

.hero-title,
.hero-subtitle {
    color: var(--bg-color) !important;
}

.hero-badge {
    color: var(--navy-blue);
    border-color: var(--glass-border) !important;
}

.hero-subtitle {
    max-width: 600px;
}

/* Contador */
.countdown-box {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 15px 25px;
    text-align: center;
    min-width: 100px;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.05);
}

.countdown-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-color);
    display: block;
    line-height: 1;
}

.countdown-label {
    font-size: 0.8rem;
    color: var(--text-light);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 1px;
    margin-top: 5px;
    display: block;
}

/* Estatísticas */
.stats-section {
    background: var(--navy-blue);
    color: #ffffff;
    padding: 5rem 0;
    border-radius: 30px;
    margin: 2rem;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent-color);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: #cbd5e1;
    font-weight: 300;
}

/* Footer e Ícones */
footer {
    background-color: var(--navy-blue);
    color: #f1f5f9;
    padding: 4rem 0 2rem;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px;
}

.icon-accent {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    background: rgba(13, 148, 136, 0.1);
    width: 60px;
    height: 60px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
}

.btn-custom {
    background-color: var(--navy-blue);
    color: #fff;
    border-radius: 50px;
    padding: 0.5rem 1.5rem;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-custom:hover {
    background-color: var(--accent-color);
    color: #fff;
}

/* Botão Destaque (Inverso do Custom) */
.btn-accent { 
    background-color: var(--accent-color); 
    color: #fff; 
    border-radius: 50px; 
    transition: all 0.3s; 
    text-decoration: none; 
    border: none; 
}
.btn-accent:hover { 
    background-color: var(--navy-blue); 
    color: #fff; 
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: #fff;
    background: transparent;
    transition: all 0.3s;
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 1);
    color: #fff;
}

.btn-outline{
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: #fff;
    background-color: var(--accent-color);
    transition: all 0.3s;
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 1);
    color: #fff;
}

/* Específico de Publicações */
.publicacoes-body {
    display: flex;
    flex-direction: column;
}

.publicacoes-main {
    flex: 1;
}

.year-card {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    margin-bottom: 3rem;
}

.border-left-accent {
    border-left: 6px solid var(--accent-color);
}

.border-left-navy {
    border-left: 6px solid var(--navy-blue);
}

.doc-link {
    display: flex;
    align-items: center;
    padding: 1.2rem;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--navy-blue);
    text-decoration: none;
    transition: all 0.2s;
    background: #fff;
}

.doc-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(15, 23, 42, 0.05);
    border-color: var(--accent-color);
}

.doc-link-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: rgba(0, 0, 0, 0.02);
}

.doc-link-disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--glass-border);
}

.doc-icon {
    font-size: 1.8rem;
    margin-right: 15px;
}

.text-navy {
    color: var(--navy-blue) !important;
}

.placeholder-gallery {
    height: 250px;
    background: rgba(15, 23, 42, 0.02);
    border: 2px dashed rgba(15, 23, 42, 0.1);
}

.placeholder-icon {
    font-size: 3rem;
    opacity: 0.5;
}

.carousel-container {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.carousel-item img {
    height: 300px;
    object-fit: cover;
    width: 100%;
}

.custom-carousel-btn {
    width: 40px;
    height: 40px;
    background-color: var(--navy-blue);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0.8;
    transition: all 0.3s;
}

.carousel-control-prev:hover .custom-carousel-btn,
.carousel-control-next:hover .custom-carousel-btn {
    background-color: var(--accent-color);
    opacity: 1;
    transform: scale(1.1);
}

/* =========================================
   Botão Voltar ao Topo
   ========================================= */
.btn-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px; /* Posiciona no lado direito */
    width: 50px;
    height: 50px;
    background-color: var(--accent-color); /* Deixa no tom verde/teal do sistema */
    color: #fff;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(13, 148, 136, 0.3);
    cursor: pointer;
    z-index: 1050;
    
    /* Estado inicial: Invisível e um pouco mais para baixo */
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

/* Classe ativada pelo JS quando o usuário desce a tela */
.btn-back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.btn-back-to-top:hover {
    background-color: var(--navy-blue);
    color: #fff;
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(15, 23, 42, 0.2);
}

/* =========================================
   Créditos de Desenvolvimento
   ========================================= */
.developer-credit {
    opacity: 0.7;
    transition: opacity 0.3s ease;
}
.developer-info {
    font-size: 0.75rem;
    line-height: 1.5;
}
.nav-event-logo {
    height: 40px; 
    object-fit: contain;
}
/* Tamanho da logo do evento no Footer */
.footer-event-logo {
    height: 40px;
    object-fit: contain;
}

.footer-develop-logo {
    height: 70px;
    object-fit: contain;
}

.img-fluid {
    max-width: 70%;
    height: auto;
}