:root {
    --primary: #0D459D;
    --secondary: #2470E0;
    --accent: #3885F9;
    --dark: #0F2B54;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    background: #030712;
    color: #fff;
    font-family: system-ui, -apple-system, sans-serif;
    display: grid;
    grid-template-areas: "header" "main" "footer";
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
    overflow-x: hidden;
}

header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(15, 43, 84, 0.3);
    backdrop-filter: blur(15px);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 3.75rem;
    width: auto;
    flex-shrink: 0;
}

.hero {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: #0D2B5E;
    background-image: radial-gradient(circle at center, rgba(13, 64, 157, 0.4) 0%, transparent 80%), url('../imagens/photo-1550751827-4bd374c3f58b.avif');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    padding: 5rem 1rem 0;
    position: relative;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.urgency-badge {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    display: inline-block;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    font-family: sans-serif;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
    margin: 0.5rem;
}

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

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.layout-flex {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

@media (max-width: 768px) {

    /* O nav deve permanecer no DOM para o menu mobile funcionar. */
    /* O style.css controla a exibição via nav ul { left: -100% } e nav ul.active { left: 0 } */
    .mobile-menu {
        display: block;
    }

    /* Header sólido no mobile — sem backdrop-filter o fundo deve ser opaco */
    header {
        background: rgba(15, 43, 84, 0.97);
    }
}