* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

/* ===== FONDO ===== */
.login-body {
    min-height: 100vh;
    background: linear-gradient(135deg, #2563eb, #1e293b);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

/* ===== TARJETA ===== */
.login-card {
    background: #fff;
    width: 100%;
    max-width: 380px;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,.25);
    text-align: center;
}

/* ===== TEXTO ===== */
.login-card h1 {
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.subtitle {
    margin-bottom: 25px;
    color: #555;
    font-size: 0.95rem;
}

/* ===== ALERTA ===== */
.alert {
    background: #fee2e2;
    color: #991b1b;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

/* ===== FORM ===== */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.login-form input {
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #ccc;
    font-size: 0.95rem;
}

.login-form input:focus {
    outline: none;
    border-color: #2563eb;
}

/* ===== BOTÓN ===== */
.login-form button {
    background: #2563eb;
    color: #fff;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: background .2s;
}

.login-form button:hover {
    background: #1d4ed8;
}

/* ===== MOBILE EXTRA ===== */
@media (max-width: 480px) {
    .login-card {
        padding: 25px;
    }

    .login-card h1 {
        font-size: 1.5rem;
    }
}

/* ===== BOTÓN WHATSAPP ===== */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 55px;
    height: 55px;
    background: #25d366;
    color: #fff;
    border-radius: 50%;
    font-size: 28px;
    text-align: center;
    line-height: 55px;
    text-decoration: none;
    box-shadow: 0 8px 20px rgba(0,0,0,.3);
    z-index: 9999;
    transition: transform 0.2s, box-shadow 0.2s;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 30px rgba(0,0,0,.4);
}

.price {
    margin: 15px 0;
    font-size: 16px;
    color: #2c3e50;
    background: #f1f8ff;
    padding: 10px;
    border-radius: 8px;
}


.price-box {
    background: #f1f8ff;
    padding: 12px;
    margin: 15px 0;
    border-radius: 8px;
    font-size: 16px;
    color: #2c3e50;
}

.pay-btn {
    display: block;
    background: #27ae60;
    color: white;
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    margin: 10px 0;
    text-decoration: none;
    font-weight: bold;
}

.pay-btn:hover {
    background: #219150;
}

.payment-info {
    font-size: 14px;
    color: #555;
    margin-bottom: 15px;
}

/* WhatsApp flotante */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: white;
    font-size: 24px;
    padding: 14px;
    border-radius: 50%;
    text-decoration: none;
    z-index: 999;
}