/* ===== VARIÁVEIS CSS ===== */
:root {
    --primary-color: #2563eb;
    --secondary-color: #059669;
    --accent-color: #f59e0b;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --white: #ffffff;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

/* ===== RESET E BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    scroll-behavior: smooth;
}

/* ===== UTILITÁRIOS ===== */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline-light:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== NAVEGAÇÃO ===== */
.navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95) !important;
    transition: all 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* ===== HERO SECTION ===== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 50%, var(--secondary-color) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

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

.hero-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    transition: transform 0.3s ease;
}

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

/* ===== LOGOS PARCEIROS ===== */
.logo-partner {
    max-height: 80px;
    width: auto;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.logo-partner:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.1);
}

/* ===== CARDS DE OPORTUNIDADES ===== */
.opportunity-card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.opportunity-card .card-body {
    padding: 2rem;
}

.opportunity-card .badge {
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 50px;
}

.opportunity-card .btn {
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.opportunity-card .btn:hover {
    transform: translateY(-2px);
}

/* ===== CAROUSEL CUSTOMIZADO ===== */
.carousel-control-prev,
.carousel-control-next {
    width: 5%;
    opacity: 0.8;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
    opacity: 1;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    background-color: var(--primary-color);
    border-radius: 50%;
    padding: 20px;
}

/* ===== EVENTOS PASSADOS ===== */
.event-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.event-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.event-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.event-card:hover .event-image img {
    transform: scale(1.1);
}

.event-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.event-card:hover .event-overlay {
    transform: translateY(0);
}

.event-overlay h5 {
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.event-overlay p {
    margin: 0;
    opacity: 0.9;
}

/* ===== CARDS DE EQUIPES ===== */
.team-card {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.team-card .card-img-top {
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.team-card:hover .card-img-top {
    transform: scale(1.05);
}

.team-card .card-body {
    padding: 1.5rem;
}

/* ===== SEÇÕES ===== */
section {
    padding: 5rem 0;
}

.display-5 {
    font-weight: 700;
    color: var(--gray-800);
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
}

/* ===== FOOTER ===== */
footer {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
}

footer a {
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--primary-color) !important;
}

/* ===== ANIMAÇÕES ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding: 2rem 0;
    }
    
    .hero-section .display-4 {
        font-size: 2.5rem;
    }
    
    .event-image {
        height: 200px;
    }
    
    .opportunity-card .card-body {
        padding: 1.5rem;
    }
    
    section {
        padding: 3rem 0;
    }
}

@media (max-width: 576px) {
    .hero-section .display-4 {
        font-size: 2rem;
    }
    
    .logo-partner {
        max-height: 60px;
    }
    
    .event-image {
        height: 180px;
    }
}

/* ===== SCROLL SUAVE ===== */
html {
    scroll-behavior: smooth;
}

/* ===== LOADING STATES ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ===== MICRO-INTERAÇÕES ===== */
.btn, .card, .nav-link {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== ACESSIBILIDADE ===== */
.btn:focus,
.nav-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== OTIMIZAÇÕES DE PERFORMANCE ===== */
.hero-image img,
.event-image img,
.team-card .card-img-top {
    will-change: transform;
}

/* ===== ESTADOS HOVER ADICIONAIS ===== */
.navbar-brand:hover {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

.badge:hover {
    transform: scale(1.1);
    transition: transform 0.2s ease;
}

/* ===== GRADIENTES PERSONALIZADOS ===== */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 100%);
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #047857 100%);
}

/* ===== BORDAS CUSTOMIZADAS ===== */
.border-primary {
    border-color: var(--primary-color) !important;
}

.border-radius-custom {
    border-radius: var(--border-radius-lg);
}

/* ===== ESPAÇAMENTOS CUSTOMIZADOS ===== */
.py-6 {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.my-6 {
    margin-top: 4rem;
    margin-bottom: 4rem;
}