.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.login-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
    position: relative;
}

.login-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 2rem 2rem;
    text-align: center;
    position: relative;
}

.login-logo {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    position: relative;
    z-index: 1;
}

    .login-logo i {
        font-size: 2.5rem;
        color: white;
    }

.login-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.login-subtitle {
    opacity: 0.9;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

.login-body {
    padding: 2.5rem 2rem;
}

.form-floating {
    margin-bottom: 1.5rem;
    position: relative;
}

    .form-floating .form-control {
        border: 2px solid #e9ecef;
        border-radius: 12px;
        padding: 1rem 1rem 1rem 3rem;
        font-size: 1rem;
        transition: all 0.3s ease;
        background: #f8f9fa;
    }

        .form-floating .form-control:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
            background: white;
            transform: translateY(-2px);
        }

    .form-floating label {
        padding-left: 3rem;
        color: #6c757d;
        font-weight: 500;
    }

    .form-floating .form-control:focus ~ label,
    .form-floating .form-control:not(:placeholder-shown) ~ label {
        color: #667eea;
        transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
    }

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #6c757d;
    z-index: 3;
    transition: color 0.3s ease;
}

.form-floating .form-control:focus ~ .input-icon {
    color: #667eea;
}

.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #6c757d;
    cursor: pointer;
    z-index: 3;
    padding: 0.25rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

    .password-toggle:hover {
        color: #667eea;
        background: rgba(102, 126, 234, 0.1);
    }

.remember-forgot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-check-input {
    width: 1.2rem;
    height: 1.2rem;
    border-radius: 4px;
    border: 2px solid #dee2e6;
    transition: all 0.3s ease;
}

    .form-check-input:checked {
        background-color: #667eea;
        border-color: #667eea;
    }

.form-check-label {
    color: #6c757d;
    font-weight: 500;
    cursor: pointer;
}

.forgot-password {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

    .forgot-password:hover {
        color: #5a6fd8;
        text-decoration: underline;
    }

.btn-login {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 12px;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: white;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

    .btn-login:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    }

    .btn-login:active {
        transform: translateY(0);
    }

    .btn-login:disabled {
        opacity: 0.7;
        transform: none;
        box-shadow: none;
    }

.divider {
    text-align: center;
    margin: 2rem 0;
    position: relative;
    color: #6c757d;
    font-size: 0.9rem;
}

    .divider::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        height: 1px;
        background: #dee2e6;
    }

    .divider span {
        background: white;
        padding: 0 1rem;
        position: relative;
    }

.register-link {
    text-align: center;
    margin-top: 1.5rem;
    color: #6c757d;
}

    .register-link a {
        color: #667eea;
        text-decoration: none;
        font-weight: 600;
        transition: color 0.3s ease;
    }

        .register-link a:hover {
            color: #5a6fd8;
            text-decoration: underline;
        }

.alert {
    border-radius: 12px;
    border: none;
    margin-bottom: 1.5rem;
    padding: 1rem 1.25rem;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.alert-success {
    background: rgba(25, 135, 84, 0.1);
    color: #0f5132;
    border-left: 4px solid #198754;
}

/* Animaciones */
@@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-card {
    animation: fadeInUp 0.6s ease-out;
}

@@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.spin {
    animation: spin 1s linear infinite;
}

/* Responsive */
@media (max-width: 576px) {
    .login-container {
        padding: 1rem;
    }

    .login-header {
        padding: 2rem 1.5rem 1.5rem;
    }

    .login-body {
        padding: 2rem 1.5rem;
    }

    .login-title {
        font-size: 1.5rem;
    }

    .remember-forgot {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}

.invalid-feedback {
    display: block;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    color: #dc3545;
}