:root {
    --gradient-start: #1536d1;
    --gradient-end: #9740ff;
    --header-bg: #4e6fe3;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    background-attachment: fixed;
    min-height: 100vh;
    padding-bottom: 100px;
}

header {
    background-color: var(--header-bg);
    color: white;
    margin-bottom: 2rem;
}

header h1 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.main-content {
    animation: fadeIn 0.8s ease-out;
}

.card {
    border-radius: 15px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.btn {
    border-radius: 50px;
    transition: all 0.2s;
    padding: 10px 20px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-control.is-invalid {
    border-color: #ff5252;
}

.error-message {
    font-size: 12px;
    display: none;
}

.whatsapp-btn {
    background-color: #25D366;
    border-color: #25D366;
    font-weight: 600;
}

.whatsapp-btn:hover {
    background-color: #128C7E;
    border-color: #128C7E;
}

.escudo-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-top: 1rem;
    object-fit: contain;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .sidebar {
        margin-top: 2rem;
    }
}