/* Contenedor principal */
.login-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Main centrado con altura dinámica */
.login-main {
    flex: 1; /* ocupa todo el espacio disponible */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0rem 0.5rem; /* reducido para evitar overflow */
    box-sizing: border-box;
    overflow: hidden; /* 🔑 evita scroll innecesario */
}

/* Tarjeta login centrada y responsiva */
.login-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    box-sizing: border-box;
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    height: 80px;
    margin-bottom: 1rem;
}

.login-title {
    color: var(--aetn-text-dark);
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: #6c757d;
    font-size: 1rem;
}

/* Inputs y formulario */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--aetn-text-dark);
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--aetn-blue);
    box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

.password-container {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #6c757d;
}

/* Botón login */
.login-btn {
    width: 100%;
    padding: 12px;
    background: var(--aetn-blue);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.login-btn:hover {
    background: var(--aetn-dark-blue);
}

.login-btn:disabled {
    background: #6c757d;
    cursor: not-allowed;
}

/* Alertas */
.alert {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid transparent;
}

.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

/* Info texto */
.login-info {
    text-align: center;
    margin-top: 1.5rem;
    color: #6c757d;
    font-size: 0.9rem;
}

/* Footer fijo abajo */
.aetn-footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    font-size: 0.9rem;
}

/* Ajuste extra para pantallas chicas */
@media (max-height: 600px) {
    .login-main {
        padding: 1.5rem 1rem;
    }
    .login-card {
        padding: 2rem;
    }
}