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

:root {
    --primary-color: #1e3a8a;
    --secondary-color: #0ea5e9;
    --accent-color: #10b981;
    --text-dark: #1f2937;
    --text-light: #f3f4f6;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

html, body {
    height: 100%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    background-color: #f9fafb;
}

/* Navegação */
.navbar {
    background-color: rgba(30, 58, 138, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-light);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    max-height: 800px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('background_lfa.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--text-light);
    animation: fadeInUp 1s ease-out;
}

.hero-logo {
    width: 150px;
    height: 150px;
    margin-bottom: 2rem;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
    animation: slideDown 0.8s ease-out;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.5rem;
    font-weight: 300;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Container Principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.welcome-section {
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.welcome-section h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.welcome-section p {
    font-size: 1.1rem;
    color: var(--text-dark);
    line-height: 1.6;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--text-light);
    padding: 2rem 1rem;
    text-align: center;
    margin-top: 3rem;
}

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

.footer-links {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

/* Responsividade - Tablet */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.2rem;
    }

    .hero-logo {
        width: 120px;
        height: 120px;
    }

    .welcome-section {
        padding: 2rem;
    }

    .welcome-section h2 {
        font-size: 2rem;
    }
}

/* Responsividade - Mobile */
@media (max-width: 600px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: rgba(30, 58, 138, 0.98);
        flex-direction: column;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav-menu.active {
        max-height: 300px;
    }

    .nav-link {
        padding: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .hero {
        max-height: 600px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .hero-logo {
        width: 100px;
        height: 100px;
        margin-bottom: 1rem;
    }

    .welcome-section {
        padding: 1.5rem;
    }

    .welcome-section h2 {
        font-size: 1.5rem;
    }

    .welcome-section p {
        font-size: 1rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Responsividade - Mobile Pequeno */
@media (max-width: 400px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

    .hero-content p {
        font-size: 0.9rem;
    }

    .hero-logo {
        width: 80px;
        height: 80px;
    }

    .welcome-section h2 {
        font-size: 1.3rem;
    }
}