:root {
    --efe-blue: #002854;
    --efe-red: #EB0029;
    --efe-red-light: #fde8eb;
    --text-dark: #2c3e50;
    --text-muted: #64748b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
}

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

body {
    font-family: 'Ubuntu', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.header {
    width: 100%;
    max-width: 600px;
    text-align: center;
    padding: 20px 0;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 40, 84, 0.08);
    color: var(--efe-blue);
    padding: 8px 18px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.card {
    background-color: var(--card-bg);
    border-radius: 20px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    border: 1px solid #e2e8f0;
    width: 100%;
    max-width: 520px;
    padding: 40px 30px;
    text-align: center;
    margin: auto 0;
}

.icon-container {
    width: 80px;
    height: 80px;
    background: var(--efe-red-light);
    border: 2px solid rgba(235, 0, 41, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px auto;
    color: var(--efe-red);
    font-size: 32px;
}

h1 {
    color: var(--efe-blue);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}

.message-main {
    color: var(--text-dark);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 16px;
    font-weight: 500;
}

.message-alt {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 28px;
    font-weight: 400;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background-color: var(--efe-blue);
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.05rem;
    padding: 14px 28px;
    border-radius: 12px;
    width: 100%;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 40, 84, 0.25);
}

.btn-whatsapp:hover {
    background-color: #001a38;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 40, 84, 0.35);
}

.btn-whatsapp i {
    font-size: 1.3rem;
}

.footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 20px 0;
    font-weight: 300;
}

@media (max-width: 480px) {
    .card {
        padding: 30px 20px;
    }

    h1 {
        font-size: 1.35rem;
    }

    .message-main, .message-alt {
        font-size: 0.95rem;
    }
}