:root {
    --primary-color: #00D4FF; /* Azul neón */
    --secondary-color: #A78BFA; /* Morado suave */
    --bg-color: #F5F7FA; /* Fondo claro */
    --card-bg: #FFFFFF; /* Fondo de tarjetas */
    --text-color: #2D3748; /* Texto oscuro */
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
}

.navbar {
    padding: 20px 40px;
}

.auth-logo h1 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0;
}

.auth-container {
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    max-width: 500px;
    width: 100%;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.auth-logo .lead {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: 20px;
}

.offcanvas {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #FFFFFF;
}

.offcanvas-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.offcanvas-title {
    font-size: 1.8rem;
    color: #FFFFFF;
}

.offcanvas-body {
    padding: 20px;
}

.ad-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 20px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.ad-item:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
}

.ad-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 15px;
}

.ad-item h4 {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 10px;
}

.ad-item p {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 15px;
}

.btn-neon {
    background: var(--primary-color);
    color: #FFFFFF;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    text-transform: uppercase;
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.btn-neon:hover {
    background: var(--secondary-color);
    box-shadow: 0 0 15px var(--primary-color);
}

/* Responsividad */
@media (max-width: 991px) {
    .auth-card {
        padding: 30px;
    }

    .offcanvas {
        --bs-offcanvas-width: 100%;
    }
}

@media (max-width: 576px) {
    .navbar {
        padding: 15px 20px;
    }

    .auth-card {
        padding: 20px;
    }

    .auth-logo h1 {
        font-size: 1.8rem;
    }
}