:root {
    /* Tons de Azul (baseado na logomarca) */
    --azul-ipe: #1a365d;
    --azul-destaque: #2d3748;
    --azul-secundario: #4a5568;
    --azul-claro: #3182ce;
    --azul-suave: #90cdf4;

    /* Tons de neutros */
    --cinza-claro: #F8F9FA;
    --cinza-medio: #6C757D;
    --cinza-escuro: #343A40;

    /* Cores funcionais */
    --verde-sucesso: #38a169;
    --laranja-alerta: #dd6b20;
    --vermelho-erro: #e53e3e;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--cinza-escuro);
    background-color: var(--cinza-claro);
}

.navbar-brand img {
    height: 40px;
    width: auto;
}

.btn-ipe {
    background-color: var(--azul-ipe);
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 500;
}

.btn-ipe:hover {
    background-color: var(--azul-destaque);
    color: white;
}

.btn-outline-ipe {
    border: 2px solid var(--azul-ipe);
    color: var(--azul-ipe);
    background-color: transparent;
    padding: 10px 25px;
    border-radius: 8px;
    font-weight: 500;
}

.btn-outline-ipe:hover {
    background-color: var(--azul-ipe);
    color: white;
}

.card-ipe {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.card-ipe:hover {
    transform: translateY(-5px);
}

.bg-ipe {
    background-color: var(--azul-ipe);
    color: white;
}

.text-ipe {
    color: var(--azul-ipe);
}

.border-ipe {
    border-color: var(--azul-ipe) !important;
}

.hero-section {
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.1) 0%, rgba(45, 55, 72, 0.05) 100%);
    padding: 60px 0;
    border-radius: 0 0 20px 20px;
}

.stat-card {
    text-align: center;
    padding: 20px;
    border-radius: 12px;
    background-color: white;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--azul-claro);
}

.nav-pills .nav-link.active {
    background-color: var(--azul-ipe);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(26, 54, 93, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 24px;
    color: var(--azul-ipe);
}

footer {
    background-color: var(--cinza-escuro);
    color: white;
}

/* Cores para badges e status */
.badge-ftco2 {
    background-color: rgba(221, 107, 32, 0.1);
    color: var(--laranja-alerta);
    border: 1px solid var(--laranja-alerta);
}

.badge-tco2 {
    background-color: rgba(56, 161, 105, 0.1);
    color: var(--verde-sucesso);
    border: 1px solid var(--verde-sucesso);
}

.badge-certified {
    background-color: rgba(49, 130, 206, 0.1);
    color: var(--azul-claro);
    border: 1px solid var(--azul-claro);
}

/* Mobile-first adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0;
    }

    .display-4 {
        font-size: 2rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .btn-ipe,
    .btn-outline-ipe {
        padding: 8px 20px;
        width: 100%;
        margin-bottom: 10px;
    }
}

@media (min-width: 769px) {
    .hero-section {
        padding: 80px 0;
    }
}