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

body {
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(160deg, 
        #003c5f 0%, 
        #0077a6 40%, 
        #00b4d8 70%, 
        #90e0ef 100%);
    overflow: hidden;
}

/* Luz suave encima del fondo */
.background-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top, rgba(255,255,255,0.2), transparent 60%);
    z-index: 1;
}

.container {
    position: relative;
    z-index: 2;
    width: 90%;
    max-width: 420px;
    padding: 35px 25px;
    border-radius: 25px;

    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);

    text-align: center;
    color: white;
}

.logo {
    width: 60%;
    max-width: 220px;
}

h1 {
    font-family: 'Playfair Display', serif;
    font-size: 1.9rem;
    margin-bottom: 5px;
}

.subtitle {
    font-size: 0.9rem;
    letter-spacing: 2px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.links {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.link-btn {
    padding: 15px;
    border-radius: 15px;
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 1px;
    color: white;

    background: linear-gradient(135deg, #0077b6, #00b4d8);
    box-shadow: 0 8px 20px rgba(0,0,0,0.25);

    transition: all 0.3s ease;
}

.link-btn:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 12px 25px rgba(0,0,0,0.35);
    background: linear-gradient(135deg, #0096c7, #48cae4);
}

/* Responsive */
@media (max-width: 480px) {
    h1 {
        font-size: 1.6rem;
    }

    .container {
        padding: 30px 20px;
    }
}