:root {
    --berken-primary: #0F172A;
    /* Azul Noite Profundo */
    --berken-accent: #E30613;
    /* Vermelho Berken */
    --berken-silver: #D1D3D4;
    /* Prata Industrial */
    --berken-text: #1E293B;
    /* Grafite Escuro */
    --berken-text-muted: #475569;
    /* Cinza Aço */
    --berken-bg-light: #F8FAFC;
    /* Gelo */
    --berken-bg-dark: #020617;
    /* Escuro Total */
    --berken-border: #E2E8F0;
    /* Platina */
    --berken-black: #000000;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--berken-text);
    background-color: #FFFFFF;
}

/* Topbar */
.topbar {
    background-color: var(--berken-bg-dark);
    color: var(--berken-silver);
    font-size: 0.9rem;
    padding: 10px 0;
    border-bottom: 2px solid var(--berken-primary);
}

.topbar a.text-white:hover {
    color: var(--berken-accent) !important;
}

.topbar i {
    color: var(--berken-accent);
    margin-right: 5px;
}

/* Navbar */
.navbar-brand {
    font-weight: 800;
    color: var(--berken-primary) !important;
    font-size: 1.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.navbar-brand span {
    color: var(--berken-accent);
}

.navbar {
    border-bottom: 1px solid var(--berken-border);
}

.navbar .nav-link {
    font-weight: 600;
    color: var(--berken-text);
    text-transform: uppercase;
    font-size: 0.95rem;
    margin: 0 10px;
    transition: color 0.3s;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: var(--berken-accent);
}

/* Botões Reutilizáveis */
.btn-berken {
    background-color: var(--berken-accent);
    color: white;
    font-weight: 700;
    padding: 12px 25px;
    border-radius: 4px;
    text-transform: uppercase;
    transition: all 0.3s;
    border: 2px solid var(--berken-accent);
}

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

.btn-outline-berken {
    background-color: transparent;
    color: var(--berken-primary);
    border: 2px solid var(--berken-primary);
    font-weight: 700;
    padding: 12px 25px;
    border-radius: 4px;
    text-transform: uppercase;
    transition: all 0.3s;
}

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

/* Tipografia de Utilitários */
.text-accent {
    color: var(--berken-accent) !important;
}

.text-primary-dark {
    color: var(--berken-primary) !important;
}

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

.bg-gelo {
    background-color: var(--berken-bg-light) !important;
}

/* Hero Section */
.hero-section {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 160px 0;
    color: white;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Escuro Total com transparência para a imagem aparecer no fundo */
    background-color: rgba(77, 81, 101, 0.75);
}

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

.hero-subtitle {
    color: var(--berken-accent);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: #FFFFFF;
}

.hero-section .lead {
    color: var(--berken-silver);
}

/* Services */
.service-card {
    border: 1px solid var(--berken-border);
    background: #FFFFFF;
    transition: transform 0.3s, box-shadow 0.3s;
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
    /* Sombra vinculada ao Azul Profundo */
    border-bottom: 4px solid var(--berken-accent);
}

.service-icon {
    font-size: 3.5rem;
    color: var(--berken-accent);
    margin-bottom: 20px;
}

/* Footer Institucional */
footer {
    background-color: var(--berken-bg-dark) !important;
    border-top: 5px solid var(--berken-accent);
}

footer h4 span {
    color: var(--berken-accent) !important;
}

footer .text-muted {
    color: var(--berken-silver) !important;
}

footer hr.border-secondary {
    border-color: var(--berken-text-muted) !important;
    opacity: 0.5;
}