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

body {
    font-family: 'Poppins', sans-serif;
    background: #1e293b;
    color: #e2e8f0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

.form-card {
    background: #273549;
    padding: 30px 40px;
    border-radius: 20px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
    text-align: center;
}

.form-card h2 {
    color: #60a5fa;
    margin-bottom: 25px;
    font-size: 1.8rem;
    text-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

label {
    display: block;
    font-weight: 600;
    color: #93c5fd;
    margin-bottom: 8px;
    font-size: 1rem;
    text-align: left;
}

input[type="email"] {
    width: 100%;
    padding: 12px 15px;
    border-radius: 12px;
    border: none;
    background-color: #1e293b;
    color: #cbd5e1;
    font-size: 1rem;
    box-shadow: inset 0 0 6px rgba(0,0,0,0.4);
    margin-bottom: 20px;
    transition: 0.3s ease;
}

input[type="email"]:focus {
    background-color: #273549;
    box-shadow: 0 0 10px 2px #60a5fa;
    outline: none;
}

button {
    width: 100%;
    padding: 14px 0;
    background-color: #3b82f6;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 15px;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.5);
    transition: all 0.3s ease;
}

button:hover {
    background-color: #2563eb;
    transform: scale(1.05);
    box-shadow: 0 12px 25px rgba(37, 99, 235, 0.7);
}

/* Responsive */
@media (max-width: 480px) {
    .form-card {
        padding: 25px 20px;
    }
}

.volver-btn {
    display: inline-block;
    background-color: #2C6B3F; /* Verde oscuro */
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    margin-top: 20px;
    transition: background-color 0.3s, box-shadow 0.3s;
    box-shadow: 0 0 10px rgba(44, 107, 63, 0.4);
}

.volver-btn:hover {
    background-color: #27AE60; /* Verde más claro */
    box-shadow: 0 0 15px rgba(39, 174, 96, 0.6);
    color: #fff;
}